this is a common strategy among cheaters in curling
Very confidently stated, but I really don't think it is.
it is illegal to do for precisely that reason.
It's illegal because it's way simpler to implement a "no touching" rule than to try to define game-changing and non game-changing touches in a way that would be enforceable.
And again, I have absolutely no problem with the rule being enforced, even though I don't think for a hot second that it impacted the game.
