The way I see it, is that the rules and aim of the instance are all written out pretty fucking clearly and people on a platform dominated by longform text don't really have an excuse for not being able to comprehend it. Like seriously, I had been using Lemmy for two days when I checked out Blåhaj, and I feel like I understood then already because it's not hard and English is my native language.
So that said, when I see people complaining about it, I think they're either fucking stupid, or they're probably these 'free speech' people that want the right to go around insulting everyone without consequences (while doing the most epic pearl clutching the moment anyone insults them).
As far as I'm concerned, moderators and admins doing exactly what is clearly fucking written in the description and rules is not power abuse.