I find it kinda hilarious.. People dont blame for example GTA, even though some people have become serial killers because of that game.. and now when one, just one friggin incident happens "because of wow" (and even tho no one got killed..), people start blaming it all and all over again.. geez..
EDIT: And yes, I know there have been more cases too but.. none of them have been serious.. Nothing like "Guy burns bunch of his friends with flamethrower thinking he's a imba fire mage with dragon's breath".