claaarky - 6:27 pm on Sep 22, 2011 (gmt 0)
Zivush, they have a tool for reporting spam, paid links, scrapers and anything else that people might do to game the system so if you are or were (pre-Panda) anything approaching a major player in your vertical, between the algo and the vast array of information and resources at google's disposal, they know how you operate.
If you have something to hide they will find it. I don't think it's possible to flourish in a niche that gets little attention simply to avoid having to produce something of real value. If a low quality site is too successful it'll get noticed and Panda'd eventually.