User blog comment:Kamakazi Ghost/How can I Delete my Account?/@comment-1244258-20120801210130

I don't think it's possible to delete an account, http://answers.wikia.com/wiki/How_can_I_delete_my_user_account_on_Wikia. However you can use your account on other wikias still and you can change your username http://help.wikia.com/wiki/Help:Changing_your_username.