I don't know what 2010 era Facebook is, but I'm talking about small SMS, iMessage, Signal, or WhatsApp groups among people who know each other outside the platform. These groups are no more than maybe 10 people each, so you don't fall into the problem of context collapse [1]. You can have offshoot subgroups, and groups can also be ad-hoc for a particular event. The personal small-scale nature means they're governed entirely by shared social norms, not algorithms or formal moderation.
If you want actual meaningful social interactions online, it needs to be small-scale and completely useless for advertisers. Group chats are that.
If you want actual meaningful social interactions online, it needs to be small-scale and completely useless for advertisers. Group chats are that.
[1] https://en.wikipedia.org/wiki/Context_collapse