There's a link from the Mod Links section where Mods can ban users from reviewing. There's also a section which shows currently banned users.
Unfortunately, currently there's no place which lists previously review banned users. Can we have this just below the Currently Banned Users list? Preferably, with the number of times they've been banned(not mandatory, since we can get this piece from user history)
The intention is simple, at least on SU, we'd like to follow up on users who've been review banned previously to see if there's been any change in the pattern. While doing a check on a user who I was about to review ban, I had no idea that the user was review banned 5 times before, till slhck told me of it (via user history). Having a list makes for easy lookup on the users' review ban history