What’s the draw of having such a small community though? And why do you think that main communities would be overriden? Honest questions here I don’t quite understand what you are concerned about. I personally think that it’s the main problem with the fediverse right now, it’s only flavorless general posts and nothing from small niche interest that drew me to reddit in the first place.
Mine is currently working fine and without a hitch and has been for a while now since the failed attempts at punishing adblockers. I can’t vouch for everyone, but you may be right about your account being flagged for some reason.