Gamersgate? Easy. Begin with spamming and (fake or not) advertizing. Something illegal or highly inappropriate for public eyes will do... If that won't get your account removed, i don't know what will. I usually get my account deleted in local forums, without wanting or intending to. Even though i never even tried to, or went against site rules of any kind. About a gaming account, i have zero experience on the matter, but you have nothing to loose (except for your account obviously, which is what you want, so you actually "gain") by trying the suggestion above.