Ability to remove a previously banned user from the Shared ban list
There are situations where mods may accidentally ban someone (sometimes clicking over to chat and accidentally hitting one of the mod tool buttons) and even if they're immediately unbanned, they're permanently on the shared ban list and whenever they show up in a chat that shares that banned list they get restricted from chatting and unless you mod in all the chats that share the ban list, you can't remove them from it.
I just feel like there should be a way to undo someone being put on the shared ban list because it can really suck for a viewer who accidentally got banned to show up as still being banned from a certain channel even if the ban was accidental and immediately removed.