Well some people will publish anything to get attention.
Let me be blunt, heroin addicts anyone who uses it at least physically. With WoW pretty much anyone who plays enough gets burned out (and this includes me) and goes through slow spots where they don't play much, or have taken lengthy breaks from it.
I won't deny that there probably have been isolated incidents of people messing themselves up with it, but then again those people were probably deeply unstable in some way beforehand. When I say "deeply" I mean it because I have emotional problems (and might be considered a video game addict in a general senses) and I've gone through periods of WoW burn-out, with heroin you literally can't stop yourself (and a good portion of it is physical).
I expect the theory about WoW-addiction to get some attention, a few people will use it as an excuse for their problems IRL, and an even smaller group will make money off of pseudo treatment (WoW addiction counseling). Then in the end it will either all fade away, or wind up giving WoW even more hype than it currently possesses (sort of like how arguaably the Dungeons and Dragons 'scare' did more to generate hype and sales for the product than it likely would have ever seen on it's own).
>>>----Therumancer--->