<![CDATA[#activitypub thonk: delivering to a Collection is nonsensical because a Collection could be an actor.]]> thonk: delivering to a Collection is nonsensical because a Collection could be an actor. but so can a Group

basically you have implicit behavior "the Collection needs to be expanded to its items which are assumed to all be actors" just like a Group might expand to all its members (except the assumption there is a bit stronger, you can generally expect a Group's members to all be individuals?)

whereas something like WAC makes a distinction between agent, agentGroup, agentClass

]]>https://bb.devnull.land/topic/4e066e81-6039-4825-b450-67f0ac112484/activitypub-thonk-delivering-to-a-collection-is-nonsensical-because-a-collection-could-be-an-actor.RSS for NodeWed, 08 Jul 2026 08:00:02 GMTThu, 09 Jan 2025 22:44:13 GMT60<![CDATA[Reply to #activitypub thonk: delivering to a Collection is nonsensical because a Collection could be an actor. on Thu, 09 Jan 2025 22:46:11 GMT]]>i'm not actually sure how something like this could be resolved. clearly there is existing functionality that depends on expanding collections found in the audience addressing properties: specifically, the followers collection, which powers the "followers-only post" feature, which is the primary reason activitypub even got adopted by mastodon in the first place

]]>https://bb.devnull.land/post/https://mastodon.social/users/trwnh/statuses/113800824189234707https://bb.devnull.land/post/https://mastodon.social/users/trwnh/statuses/113800824189234707Thu, 09 Jan 2025 22:46:11 GMT