They recently had a mod event where they announced they are restricting ban abilities from mods. Basically AI can ban, mods can choose to unban - but not initiate a ban in the first place.
There are a couple mods I like to hate-watch, once a month or so I swing by and see what kind of BS they have been doing lately. The schadenfreude of watching them mald over this was the best I've had all year.