A problem right now is the conflation between instance and community. The instance is really a technical concept, which allows for the federated hosting model.

A problem right now is the conflation between instance and community. The instance is really a technical concept, which allows for the federated hosting model. It hosts your Fediverse identity and while you can migrate, it's not seamless. Most people don't want to belong to just one community, so while an instance gives you a default community, it should not be the only mechanism of community. I don't think there's a widely distributed community concept, but hopefully, one will evolve. Something akin to the feature set of Facebook groups. This is very solvable, and I'm guessing that if Mastodon continues to gain in popularity, we'll see something emerge.