Question...
The Friendica/Hubzilla/Streams family tree, and I believe Diaspora, use a conversational model of interaction similar to Facebook. The person who starts a conversation owns the conversation. Comments go to the creator of the original post for redistribution, and this person controls who can comment. (Mastodon and many other Fediverse projects use a completely different, Twitter-like, model.)
Are there any other Fediverse projects that use the conversational (Facebook-like) model?