backdraft7 - 2:58 am on Jun 2, 2010 (gmt 0) [edited by: Robert_Charlton at 6:59 pm (utc) on Jun 3, 2010]
I've seen some real nonsense pages rank very highly. They seem to be auto generated gibberish that makes zero sense but is keyword loaded. I also know of a competitor site who is using two domains for selling the exact same service and getting both sites highly listed in the top 2 and 3 positions for the same keyword, even though it's a clear violation of the WMGL's. You can compare adsense code on both sites and it's identical, they register the one domain under their real name and the other under a fictitious name and host each on different servers.
The bottom line is that I'm not sure where Google's going with this quality thing and what is their definition / interpretation of quality. If the past is any indication, the junk sites and "quality" violators may rise to the top temporarily then get skimmed off.
[edit reason] typo fixed at poster request [/edit]
[edited by: Robert_Charlton at 6:59 pm (utc) on Jun 3, 2010]