No one has to date ever reached 1500 CMs... the math is aginst it... sorry peeps, it will take a long while for anyone to hit 1500!
As for cheating thier way to 1500, again, I doubt very much you can cheat you way to it. The problem is, NUMBERS! the amount is way too huge. Nope, I'm not buying it, no one ever has made it to 1500, cheating or otherwise! Now, I know there will be a dweeb who will LIE and say they have, but at least I KNOW, they be liars!
I'm not about to reproduce the math and number cruching I've seen else where, but from what I've seen, NO ONE IS GOING TO MAKE IT TO 1500 ANY TIME SOON. End of REAL discussion on that!