Since the problem is so deep find a solution for that. Overdoz can freely play but he can't be into staff team, people involved in IP exposure get unbanned, they did It for good cause not doxxing (You can change IP in 5 minutes, but you can't change your face (Talking about posting people's irl pics)). Now for the appeal process, If you are into giving chances then make It easier, If someone genuinely appeals after 2-3 months with solid appeal he has higher chance to get unbanned If they aren't permbanned (ban evaders still get same treatment cause they clearly can't learn). I saw myself that Moody, not targetting just pointing out, unbanned someone named "MCNRLOVER" after evading like 3 times and appealing with chatgpt, not funny I know.
Just make set guidelines for all staff for an appeal/unban process, amount of repeat offenses and etc. Make It fair so staff won't ban or unban based on their ego.