miozio - 4:27 pm on Aug 10, 2012 (gmt 0)
I had the same problem when Google spam team pointed at links as unnatural from sites that scraped Wikipedia where I had a featured link. Those sites had nofollow attribute, same as Wiki but it does not matter to Google anymore. I desperately screamed in reconsideration request of such an injustice and they revoked manual action. Good rankings never returned since then.