Nofollow… wonder how this will kick in?
From now on, when Google sees the attribute (rel=”nofollow”) on hyperlinks, those links won’t get any credit when we rank websites in our search results. This isn’t a negative vote for the site where the comment was posted; it’s just a way to make sure that spammers get no benefit from abusing public areas like blog comments, trackbacks, and referrer lists.
Yes, but you forget that rel=”nofollow” will also give no value to your internal pages, and thus dicreases your site’s value in Google.