It's a game of willpower. I doubt many will last long, but that's kinda the point.
I will not participate in denying myself one of the most wonderful pleasures in life. Sure if it was for a good cause, like a donation to an institution where they do research on testicular cancer I would try not to have sex but like you said I doubt anyone can last long - Look at cats, when they are in heat they go crazy, and many of them are hit by cars because they are so "in love" as old people say.
If you pledge a dollar for each day I go without having sex or masturbating I am in