I moderate the hell out of my instance. For 5000 current members, over 1000 are suspended. I can’t stress enough how many times I see people actively asking banned members things they will never get an answer for. It’s not an intuitive thing to click someone’s avatar to see their user card (where the suspension is shown), this is why on my forum I get a bunch of “hey, what about this and that?”, “hello??? could you answer me??”, “why are you ignoring me?”, “pleeeeease?” posts.
So, my idea is to have some kind of obvious indicator (red dot? icon?) over a banned members avatar. It’s not even an idea, it’s something that virtually all discussion platforms have (some kind of account-status indicator), would be lovely for Discourse to implement this.