MikeNoLastName - 7:47 pm on Jul 23, 2012 (gmt 0)
pt B: If G is using this as a criteria, they are being highly presumptive and unfair.
We label on our site "sponsored links" (as G once specified themselves for us to do - now they would penalize for it?), but they are all nofollowed as LATER specified by G also. Furthermore, we specify on our advertising info page that "our advertising is solely for related, targeted traffic and we DO NOT accept any requests for advertising intended solely for pagerank manipulation..." So if their algorithm is going to search for those terms it BETTER be good enough to distinguish between pro and con statements!
BTW, I tend to agree with onepointone and martinibuster (the simplest solution) that post Penguin rankings dropped simply because G "discounted" links from and/or demoted sites which were selling anchor text links thus reducing link juice passed on. Thus removing them probably won't make a difference, and risks removing some which maybe AREN'T demoted after all.