I think some mastodon[0] servers are run this way: users pay a small portion to cover hosting costs and there is usually some topic that brings that server/comm

I think some mastodon[0] servers are run this way: users pay a small portion to cover hosting costs and there is usually some topic that brings that server/community together. However, you are not limited to a single mastodon community because they are federated (similar to email where gmail users can communicate with hotmail users). [0]: https://github.com/tootsuite/mastodon https://github.com/tootsuite/mastodon