I support those who say that giving a second chance to someone who cheated is wrong.
I'll give an example: if i used wh+aim and i was, consequently, banned would i be unbanned if i admitted that i used cheats and said im sorry? It makes no sense since you would be only trusting my statement, regardless or being fake or not.
One last thing; what about other people who cheated? Would they get this opportunity too? If you unban this guy then you should do the same to the other cheaters, otherwise it wouldnt be fair.