I think it's fascinating to see distributed social networks from a tech perspective. From what I've seen so far they exacerbate the problems that Facebook has been seeing so much backlash against. 1. The whole Cambridge Analytica issue was caused by APIs that are too open. For distributed systems there are more ways to exploit the APIs and gather data on users. 2. There is a clear issue with Facebook's accountability…
1. Follow you from site to site, scooping up all the data they can on you.
2. Allowed all of that data to be accessible not just by you opening up to a bad actor app, but by any of your friends opening up to a bad actor app.
Calling it "overly open APIs" is misleading at best. The point of an API is that it is a public interface. If Scuttlebut has proper permissions controls then they wont have these problems... and because they're open source those problems can be scrutinized rather than remaining opaque.