Cheater-1 commited an error and the question is why. Is Cheater-1 involved in the site's development? Is he/she a real persona that actually has been haunting chess sites? Is he/she a recent persona?
If you look at the game you see that Cheater-1 has taken a pawn with his bishop and followed it up with hxg. This pawn capture was his last chance at a draw. I'm certain his computer would have indicated that hxg was not good but he did it anyway. I'd actually like to know if other peoples programs spot this from Bxh3.