Andy Beal has a blog post up to the effect that NoFollow is a bad thing. (Edit: Andy points out in the comment thread that his opposition to NoFollow isn’t as absolute as I was suggesting.) Other SEO types are promoting this is if it were some kind of important cause. I think that’s nuts, and NoFollow is a huge spam-reducer.
The weakness of Andy’s argument is illustrated by the one and only scenario he posits in support of his crusade:
The result is that a blog post added to a brand new site may well have just broken the story about the capture of Bin Laden (we wish!)–and a link to said post may have been Tweeted and re-tweeted–but Google won’t discover or index that post until it finds a “followed” link. Likely from a trusted site in Google’s index and likely hours, if not days, after it was first shared on Twitter.
Helloooo — if I post something here, it is indexed at least in Google blog search immediately. (As in, within a minute or so.) Ping, crawl, pop — there it is. The only remotely valid version of Andy’s complaint is that It might take some hours for Google’s main index to update — but even there there’s a News listing at the top. This simply is not a problem.
Now, I think it would be personally great for me if all the links to my sites from Wikipedia and Twitter and the comment threads of major blogs pointed back with “link juice.” On the other hand, even with NoFollow out there, my sites come up high in Google’s rankings for all sorts of keywords, driving a lot of their readership. I imagine the same is true for most other sites containing fairly unique content that people find interesting enough to link to.
So other than making it harder to engage in deceptive SEO, I fail to see what problems NoFollow is causing.