@IgnisIncendio

One of the major confusions on here is people think they have to join a server to take part in discussions, and if you're not a member you're somehow missing out on those.

This isn't the case at all. There is no way of creating server-only posts on standard Mastodon, so any discussions that go on are always cross-server.

You can restrict a post's audience to followers or mentions, but you cannot restrict it to your server.