Britain's Telegraph newspaper has news about addiction therapists joining the game themselves, specifically to find and seek out players who might meet the definition of addicted to World of Warcraft. They're actually looking for official Blizzard support, too. I'm not sure how much help you can actually provide by chatting with a player in the game ("Hello, it looks like you've been online for the last 16 hours, are you addicted?"), but they want to do it.
Dr. Richard Graham wants to launch a program by the end of the year that includes some in-game outreach, and even he agrees that it'll be tough sell. Then again, maybe the guy just wants to play some WoW for free:
"While a psychiatrist may excel in what they do in the real world, they're probably not going to be very good at playing World of Warcraft. We may have to work at that if we are going to get through to those who play this game for hours at end."