How valid are the claims that Google will track you if you use your Google accounts to engage in blackhat seo? Using chrome for your browser...using gmail accounts to sign up for 2.0's...stuff like that. Even if G did notice a pattern, I doubt the backlink dilution would be very severe. Has anyone seen any research to back this up? Sometimes I hesitate to check for indexed backlinks from my own IP too early, because I don't want queries being sent from the same IP for sites that aren't indexed, seems like it is setting up a pattern that could be recognized.