content: Secure Scuttlebutt / Patchwork looks much more promising than Diaspora / Mastodon. https://github.com/ssbc/patchwork.  Anyone can distribute ("gossip") your content (including "pub" servers as well as peer-to-peer exchanges). Others can't tamper with your content (they don't have your private key). It is censorship-resistant - censorship would require all peers and pub servers you connect with to conspire to suppress your message. I think those gnusocial solutions are not good enough. In many cases you're still having to interact with and trust a server, although you have your choice of who provides the server. I believe there is vulnerability to tampering by malicious operators (e.g. Reddit admin sneakily editing users' comments). Also censorship.