I have to admit I haven't look into p2p social networks in years. The ones I've tried in early 2000s (such as freenet) had really dodgy users. Perhaps a lot was

I have to admit I haven't look into p2p social networks in years. The ones I've tried in early 2000s (such as freenet) had really dodgy users. Perhaps a lot was learned since then. Anyway, I agree with you that what really prevents people from using the system for nastiness is moderation and not necessarily identity. However, the problem is not only fringe and extremist beliefs, but actually becoming a platform for actual crime, through sharing of photos and videos of abuse. That's what worries me the most about p2p social networks and the reason I'm generally not ok with storing other people's data in my computer, even if encrypted.