There is actually an association which takes care of ex-WoW-addicts. No, I am not joking! There are several homepage and association working on the same principle than AA, but it for WoW. It is built in the same way: The 12 steps for recovery and all. I made a comparison with the work that has been done with ex-drug addicts (I worked as a psychologist with ex-drug addicts in 1998-2000), and they are actually using an identicle methods: You have to confess your addiction, your “sin” so to speak and begin to fight the need you think you have of killing dwarves and other vermin online.