I came across a nice article. I think I should share this with other dp members. http://www.hiveminds.co.uk/node/3615 comment on this article.
Thats hard to swallow, but could very well be true, none of my sites have dropped yet of course I don't sell because of PR really, I sell more by traffic and have never had a customer complain as I give a refund if they were unhappy in anyway. I don't see why my sites would be penalized but Google is the boss and arguing with them and among ourselves is only going to make things worse. I say lets wait to hear what Matt Cutts has to say since he is sort of the authority on this subject Thanks, Gotlinks