Trust me on this, IF you do not know what the game is and how it is done to the rules, and this includes Yahoo!/Bing/whatever...you will lose!
Well that depends on what you call a losing.
I have a lot of sites (if I did not have so many I would be screwed now) and play with different things , but I try to keep my main sites as "clean" as possible but this does not matter to Google anymore they will burn them anyway.
I am going to start not caring if a site gets taking down will spend less propping it up so it will not hurt so bad when it goes. Will just replace it "disposable" sites is the new catch phrase for 2011 :)
If anything the Panda is making me think much smarter going forward.