Quoted from Raegor:I think he cheated on that DK tape, and I don't have a problem with them removing the scores in question but a lot of his achievements were done live, especially on Pacman and some other games.
Who is to say those scores weren't done on modded / hacked games? If you are caught cheating, and there seems to be systemic collusion along the way, it is not unreasonable for people to have questions about more than just was uncovered so far.