Ok guess

They may also not be exactly the same just with a significant overlap.

But yea why not. It’s just a suggestion for an option that should exist imo.

It would be really nice if communities could be connected right at instance level.

So if you have c/abc on instance 1 and c/abc on instance 2, and you subscribe to either of them, it would, by default, subscribe you to both (assuming that both instances agree to such a cooperation).

Something could also be arranged within communities, especially when it comes to posting. Such as, when posting, to be able to select multiple coms to post to, but it would still be just one post you could edit or delete, and have all the comments in one place.

On Reddit I would sometimes struggle with which sub to post to, and I don’t like posting to multiple ones or crossposting if I can avoid it.

I’m on https://lemmy.world. Apparently the people running it also run a mastodon server with 160k I think? users, so this might be good.

So, something like that works for a “normal” acct I think. I doubt there’s a way to avoid making alt accts if you also wanna explore alternative topics and lifestyles.