You cant cure addictions unless the person addicted wants it to be cured. The sister could ask him to get a part time job to atealst pay for the interent connection and hes EQ fee, then later make him pay some food money and rent and so on. Also you could try to drag him out to pub or something and keep doing it on a…
I'd really say pull the plug. Login with his account and delete his characters. On the long run, MMOs are only addicting because of the items and power you posses, you don't want to give that away after all the work, but i doubt that most people would stick with the game if they had to start from scratch, while all their…