Sgt_Kickaxe - 1:12 am on Apr 24, 2012 (gmt 0)
So you feel your site is lacking in some way, giving a signal it should not, and your instinct is to optimize further as Google suggests... then enter the over-optimization penalty Matt Cutts is working on.
My advice is simply to load up the default theme for whatever CMS you are using, make no changes for SEO in ANY way and continue creating useful content of higher quality than your competitors. Be mindful of overlapping your other pages and ignore Google.
You losing your house because of mysterious Google shenanigans looks bad on Google, not on you. Also, if you have little used features (comments, twitter profile, facebook page, social buttons) consider ditching them. It's better to have no features than little used features imo, the less to rank you poorly for the better.