Here's some comparative info: SE bans less than 10,000 accounts a week, WoW bans 100,000
http://www.pcmag.com/article2/0,2817,2484318,00.asp
If you're a World of Warcraft player, you might notice fewer people hanging around your favorite digital gathering spots this weekend. And if you're a World of Warcraft player who used third-party hacks to give yourself an in-game advantage over other players, you're probably sitting around wondering what to do with all your new free time.
According to a post from a Blizzard community manager, the game's developer recently hit a large number of players with in-game bans for doing just that—using third-party tools to game the game. According to one of the game's support staff, in an in-game conversation with a player, more than 100,000 World of Warcraft accounts were suspended for cheating.