On some forums, banned or (temporarily) suspended users get identified by their usernames being in a different colour, being struck through or their "title" ("Lepton" etc) being changed (e.g. to "suspended" or "banned").

On the old version of the forum software here, the username was visible but was no longer a link to the user and their posts. (Which was annoying because it made it hard to find old posts - to identify a sock-puppet, for example).

Now we have nothing telling us that a user is banned (unless you follow the banned users thread, or a mod posts in the thread(s) they were posting in) so people may keep trying to discuss something with someone who is gone.

If there is a configuration option to display the banned status, it would be useful.

I’m all for it. I’d add pink color coding for racists and unicorn signs for crackpots.