Comment spam. Think what's proposed in this article will work? Google, Yahoo, MSN Unite On Support For Nofollow Attribute For Links http://blog.searchenginewatch.com/blog/050118-204728
*cheers* *brushes liability off of shoulder* excellent find. Nice to see some cooperation among the SEs too.
That is awesome. I can't stand comment spammers. I bet the nofollow attribute will take a while to catch on though...
Content spam can already be blocked by passing URLs through an unspiderable script that redirects. But maybe it will be enough to keep spammers from doing it to begin with.
This is very similar to the pop-up industry. We see less and less third-party advertisers trying to push pops on publishers sites. Why? Because every browser has a builtin popup killer. Almost every toolbar has a pop killer too. As a result, less and less sites are using them for revenue. I hope this trend will be similar with comment spam. As spammers realize there is no benefit to their SEO, they will phase out comment spamming. Some may justify that they can still comment spam just due to the traffic they get from referral sites, but they will be kidding themselves. Any large traffic generating site heavily moderates comment spam. On the smaller sites, as a user I have a hard time being convinced to click on a "cialis" link in the middle of a sentance about Mt. Saint Helens in the comments. Fuck'em all, I say.
No, the spammers don't care about the efficiency, I use MT with the redirected URL on comments, but still got over 100 spams untill I installed MT-black list.
It seems fishy to me that all the biggest search engines would get together and make an attribute that helps bloggers. No offence to bloggers, but I think there must be something larger behind this. Maybe a longing for the "good old days" for the SEs, when you only gave links to sites you genuinely liked and thought were on topic? On a slightly different note: how do you affiliate managers feel about this? Are you afraid you sites will lose PR, because affiliates will link with rel=nofollow?