When I suggested to Kramnik...
First of all, you claim it was 'clear' he was cheating. How so?
Second of all, those losses can be easily explained by the fact that Hikaru is human. People can be tired, burnt out, make a mouseslip, and so many other things.
The statistics of 1400 (last year) me beating a 2000 are staggeringly low, yet I still won a few.
Hikaru's W/L ratio is no proof of him cheating, and I for one, condemn Kramnik for the way he went about it.
I'm not sure trials for defamation/libel etc are the way to go. I mean, how could anyone prove cheating (unless they were literally observed or confessed)? It would fuel paranoia even more, and would be some crazy psychological warfare to tie up opponents in expensive legal dealings before a tournament etc ....
I don't know what the answer to cheating is in the age of engines???