My point about the rematch is that it made more reasonable to the chess community to believe Kasparov's claims. From IBM's perspective, it made sense as you po

My point about the rematch is that it made more reasonable to the chess community to believe Kasparov's claims. From IBM's perspective, it made sense as you pointed out. From Kasparov's perspective, it also made sense for them to decline , but for a wholly different reason. It really was just a sad situation where nobody could come out on top except for IBM. Even if they DID cheat, they were the only ones who were capable of proving that. IBM simply outsmarted Kasparov outside the game.