Well if the whole table knew, you would just go allin with all of you first hand and
than the winner shoves every hand from there, that way his winrate can't possibly be higher then 60-70%.
Another strategy which would maybe make his winrate even lower is all time out every hand. So maybe 1 hand each blind level, get it up to where everyone has a M:3 and let the crapshoot begin.
Not sure which strat would work better.
Now this proposition, if you knew that 1guy at your table could see all the cards in lets say a SNG and he plays PotRipper style, the rest of the table did not know. How often would you come in 2nd??? What would your strategy be?