For reference, Hubzilla renders both the same way. If you "share" someone's post (what Mastodon users call a "quote post") is basically just:@channel@example.com [quote]Whatever they said.[/quote]which gets translated to:@channel@example.com<blockquote>Whatever they said.</blockquote>If someone quotes someone's post in a forum, it is the same exact thing.And users can also add their own blockquotes to posts by using the BBCode [quote] tags too. It's all blockquotes.Note: This posts uses <code> blocks. This may not render properly on all platforms.