People that are going to go on that site were already going to cheat. That site does nothing wrong.
The site does nothing wrong? Advocating cheating IS wrong. Period. You are right in that since people do cheat, the niche for the site exists, but that does not make it morally acceptable. There is nothing wrong with keeping an add the vast majority of society thinks is immoral, off TV. I say that is someone who really doesn't care much for censorship.