Except this is giving up anonymity, first, everywhere, not on a few sites. Two, the goal is to find an excuse to arrest you, not to get you to buy a birthday present for your niece when it's time. Well, that, and (this is Australia) to refuse you medical care because you looked up "best cigarette" 10 years ago, as well as refuse you unemployment because you Googled "how do people fake a handicap" after watching office space, 20 years ago.