Comment by arch_deluxe

You might be interested in FreeFollow.org [full disclosure, I'm one of the engineers working on it].

It combines the economic model of web hosting (users pay to host spaces, reading is free, and writing in someone else's space is also free), the simple UI of social media (you have a profile and write posts), and the E2EE security model of 1Password (we actually implemented their published security model). It's also a non-profit so there's no pressure from owners to exploit users.

It's aimed primarily at parents of young kids who are annoyed at constantly sharing via text groups, but non-parents are also surprisingly into it.