I'm convinced decentralization is viable for local applications and services like offline document editors and Syncthing, somewhat so for geographically dispersed but closed systems like 1:1 DMs and group chats/video calls (Tailscale sharing might work for static sets of people like friend groups and polycules), but I'm not sure the moderation and inter-server conflicts are workable for publicly visible posts where y…
I don't think that's a desirable goal. It's up to individual services to host centralized forums and deal with the ensuing moderation issues.