If hacker1001101001's misdeeds were not apparent to the admins this time last year when he was unbanned, I cannot help that. They should have been. His misdeeds were highlighted four months ago, and the admins chose to not take action.
What makes you sure an admin banned him and not a global moderator? How about you stop wasting time defending evil individuals and go help somebody who needs it? You can thank me later.
I may be mistaken, but I believe an administrator needs to unban someone if they will be unbanned. If this was not the case, I would think an admin would be aware of anyone unbanned.
Doesn't say so in his unban thread.