But users can moderate communities on instances other than their own. So it’s common for a user to create an account on another instance just to create a community, then add their main as a moderator just for convenience. So it’s not a show stopper if OP wants to keep using this account.
Someone had created !typewriters@lemmy.cafe and I could swear it had some content, but engagement was low at the time and I think the creator abandoned it. I can move ownership to you if you're up to it.
Hey, I've replied to your post. I see it has a few upvotes, which implies that federation is working.
In regards to another member - he might have trouble initially if nobody from their instance had subscribed to the community, yet. Once subscribed, everything should be fine.