You obviously don't visit Flippa too often. As someone who does, I can tell you that you have quite the wrong impression. Flippa is a cesspool full of people selling crappy sites at inflated prices and if you really want to get detailed info on a site, you usually have to spend hours and hours pulling it out of the seller. Something as detailed and transparent as the auction here is a very rare exception. Not to mention that it actually seems a solid business with increasing revenue over the years. Most people sell their sites only when they start going down the drain.