An idea from a SEO noob. I'm sure someone has already thought of this. But I was wanting to bounce it off you guys anyway. Since penguin has knocked a lot of sites out of the top ranks the consensus seems to be all about cleaning up the damage...anchors and back links etc. Well how about finding the bulk of competitors above your page rank and give them some free advertising. LOTS of free advertising. Post and link spam them, to the point they get the G slap...and get belted down the ranks below you. Bad idea? Good?