Robert_Charlton - 6:33 pm on Aug 30, 2012 (gmt 0)
Regarding thegypsy's post above... in his blog post today [searchnewscentral.com], David Harry (aka thegypsy) comments on the patent and some of the reaction it's been getting...
I personally get the sense that this would be something applied to sites that have already tripped another spam signal (there's a ton of them) as another bit of evidence prior to any type of manual action. I say that because if this was applied index-wide, the SERPs would actually be a massive state of flux. Think about it. It makes more sense as yet another layer of spam detection to avoid false positives.
Well worth reading in the context of this discussion.