I do love Rostra (and other P2P social things), but you will always run into this issue of compute.
People want a feeling of security and safety. They want Access Control Lists, friend requests, permissions. You need compute for that.
It’s why I still believe in Urbit. It’s the closest thing to a digital home we have. P2P social + safety and security. Users actually have their own compute. And it’s understandable where data lives (at my house, at your house, etc)