Maybe your brother 'lost' himself into world of warcraft for a reason. I am not saying that the apparent consequence of his gaming habits haven't lead him to be

Maybe your brother 'lost' himself into world of warcraft for a reason. I am not saying that the apparent consequence of his gaming habits haven't lead him to be lacking socially accepted success in life, I am merely suggesting that your brother might have been in a completely different mental place than you and your family. That being said, I do agree that moderation is probably key to balance in life.