@scott when it comes to participating in a “thread”, you don’t do this from the object view. you need to navigate to the collection view first. it’s up to any individual actor to decide which (if any) context(s) they want to consider a “thread” or not.

@infinite love ⴳ That is not how every single forum and threaded social media app works. For every single one, there is only ONE thread, always, end of story.

People cannot choose what thread a post belongs to. If you reply to a post on a forum, your post becomes part of the thread, period, end of story. You have no choice. It is automatic. That is how forums work.

You do not have a choice of context, unless you place the post in a list that is not a thread. That is the ONLY time you have a choice of context. And that is only if you created the list yourself.

@scott well, i disagree with that definition of "thread". you can respond outside of a thread. you can have more than one thread. and it should always be your choice when and how these things get decided. "you have no choice, it is automatic" is incredibly user-hostile.

@infinite love ⴳ You would have to change how every forum and threaded conversation system works, because replying to a post within a thread always places it in the thread.

There are logistical reasons for this. It allows moderation at the thread and forum levels. A post can be removed from the forum or the thread by forum moderators, and it disappears from the forum. The person who posted still has the original and can forward that to anyone they want, but it won't appear in the forum any more and won't be distributed by the forum anymore.

It is similar to having a guest in your house. You can ask the person to leave at any time. That is the nature of forums, which are moderated communities. It is a complete different paradigm that the free-for-all that is Mastodon and Twitter.

It is also why you have to join most forums, and they can prevent you from posting in the forum if you are not a member of the forum. It's their territory. Their home. If you want unmoderated distribution, you post on your own timeline instead of someone else's thread or forum.

User-hostile or not, that is how forums and threads work, and have worked for 40 years. The fact that you seem surprised by this explains why you don't seem to understand why a thread is different than a collection.

@scott you can moderate at the thread or forum levels without any post ever being explicitly inReplyTo any other post. inReplyTo is completely optional, and completely separate.

"this is how it works and has always worked" is regressive. if we were building centralized forums in the vein of the past, maybe it would be okay. but we're building a decentralized social web for the future. we need to broaden our view of what's possible. and we need to recognize the choice that any publisher has.

@infinite love ⴳ

"this is how it works and has always worked" is regressive. if we were building centralized forums in the vein of the past, maybe it would be okay. but we're building a decentralized social web for the future. we need to broaden our view of what's possible. and we need to recognize the choice that any publisher has.

Refusing that threads exist is regressive, not the other way around.

If you want to support new use cases, you allow things to be declared a thread and to be declared collection or other things.

If you do not do this, you are basically telling platforms to ASSUME that it is a thread since there is nothing saying otherwise, and most existing systems only support threads.

Refusing the have a way to declare a thread is regressive and hinders other user cases.

@scott again: if you want to declare something is a "thread" then you need to clearly define what a "thread" is, semantically speaking. you don't fit your semantics to specific implementation decisions. the semantics need to make sense regardless of any implementation.

- if you're responding to something, use "inReplyTo"
- if you want to group objects together around their reason to exist, use "context"
- if you want to mark your object as relevant to specific people, use "audience"

and so on.

@infinite love ⴳ I have defined it over and over. It is the conversation container that forums and Facebook-style platforms place your replies into. You do not choose it. It is automatic. There is a conversation owner who can delete any comment within the conversation container, with or without the consent of the person who posted the comment. It is moderated by both the conversation owner and the site administrators.

I know that there is not much difference on the backend or the database, but there is a HUGE difference on how you display a thread versus a collection.

And I have given you several use cases where it would be confusing the classify a non-thread as a thread, especially when some of the objects in the collection are threads themselves.

Ideally, platforms give us a clue about what the data they're sending actually is.

Otherwise, platforms will assume it is a thread, and that is regressive behavior and supports the status quo.

Also, from a practical programming standpoint, it easier to just grab the one marked as a thread instead of just assuming that maybe the first one is the thread, maybe?

@scott you're still assuming "forums and Facebook-style platforms" work in this one specific way, where additions are automatic instead of intentional, and where the author of the post doesn't have any control over their own post. i'm talking about a system in which the author *does* have control over their post, and the collection owner only has control over what gets added or removed. they don't get to delete the post. they only get to remove it, or to never add it in the first place.

@scott

here's a practical example: what is the difference between these two objects?

```
id: <post-2>
inReplyTo:
- id: <post-1>
context: <thread-1>
```

```
id: <post-2>
inReplyTo:
- id: <post-1>
context: <thread-1>
context: <thread-1>
```

you are arguing that the first object belongs in thread-1 **despite never declaring this for consideration**. this is not guaranteed.

@scott furthermore, you are failing to account for the following possibilities:

```
id: <post-2>
inReplyTo:
- id: <post-1>
context: <thread-1>
context: <thread-2>
```

```
id: <post-2>
context: <thread-1>
```

```
id: <post-2>
context: [<thread-1>, <thread-2>]
```

```
id: <post-3>
inReplyTo:
- id: <post-1>
context: <thread-1>
- id: <post-2>
context: <thread-2>
```

```
id: <post-3>
inReplyTo: [<post-1>, <post-2>]
context: <thread-2>
```

and many, many more

@scott it feels like you're focusing too much on the issue of "what if something is not a thread?" a la

```
id: <post-2>
context: [<thread-1>, <thread-2>, <not-a-thread>]
```

in which case, you simply drop not-a-thread from consideration.

you also seem to be confusing "object is in a collection" with "object exists in context of something". being part of a collection is not enough.

Here is an example:

id: post 1
context: thread-1, project, flag-a

id: post 2
context: thread-1

id: post 3
context: thread-2, project

id: post 4
context: thread-2, flag-b

id: post 5
context: project, thread-3, flag-a

etc.:

How do I know which one is the conversation that is displayed on the forum?

Here is an example:

id: post 1
context: thread-1, project, flag-a

id: post 2
context: thread-1

id: post 3
context: thread-2, project

id: post 4
context: thread-2, flag-b

id: post 5
context: project, thread-3, flag-a

etc.:

How do I know which one is the conversation that is displayed on the forum?

@infinite love ⴳ Or more specifically, how do I know which is the official moderated version of the conversation according to the forum?

@scott whichever one declares the requisite properties (owned by the forum or some mods on it, scoped to an audience, contains "post" objects bound to a context, etc.) -- if there are any missing properties that you consider "required", then you drop it from consideration.

for example, maybe you consider the "thread" as something special that needs to be declared, e.g. as a ConversationContainer, but i think that's needlessly limiting and not backwards-compatible with unaware implementations.

@scott the core functionality is the grouping of posts by their topic or shared context. the "trick" is that if it's a collection, it's actually entirely up to the owner to decide what goes in there! i could create a collection, declare it to be a ConversationContainer, but then start adding unrelated posts. actually, as the owner, i get to decide what's related and what's not! maybe i require context to be set. maybe i require inReplyTo. maybe i have some other criteria. ideally, i signal this.

@scott so the collection has some "participation criteria" which describes the shape of what i deem worthy of potentially Adding. for example, i could say that
- object.content must be present
- object.attributedTo must be present and included in the Collection.audience
- object.context must include Collection.id

but this is advisory at best. i reserve the right to add objects that don't match this shape.

i also can hint how i think the collection should be displayed, but this is only a hint.

@scott the point i'm trying to make here is that, in an open world system, there are limits on what you can enforce or expect. it's always possible that you will encounter something that breaks your expectations, so make as few expectations/assumptions as possible.

the idea of a "thread", when broken down to its core semantic ingredients, is not significantly different than "a group of posts bound by some common key characteristic". structure is created within that grouping.

@infinite love ⴳ You also have to consider that most systems may get duplicate versions of the same post from different sources.

For example, if I am following someone and following the forum, I will be sent one copy from the person I am following, and one copy from the forum. The forum will have a context attributed to the thread, and the other version will not.

Since the forum sends a copy of all of the posts in the thread directly to followers of the forum, you don't even need to process the reply tree. Just look for the context that indicates the thread and show all posts marked with that context. Any post without that context has been moderated out of that thread.

If you want to utilize the moderators of the remote system, you have to display only what they approved to be in the thread. If you don't care what the moderators on that other system think, you process the reply tree instead, and only use the context to backfill the conversation.

To minimize spammers and trolls, you drop any post that does not belong to that context (the moderated forum thread) and/or does not belong to someone you follow.

You don't have to do that and can let anything in the reply tree through, but if someone is already moderating a thread, that's less work for me.

@scott
> The forum will have a context attributed to the thread, and the other version will not.

The forum doesn't have permission to modify the author's post. It can only send an Add and/or Announce.

Instead, any consumer wanting the "moderated version" needs to either fetch a collection's items directly, or establish proof that any item was Added to the collection. If you can't prove this, you hide or drop the post as "unverified".

This continues to have nothing to do with reply trees.