Now, this is provocative and flies some kites which will come crashing to earth, but I can't not link to it given the identifiable importance of the issues at stake. For my "considered" thoughts, you can always go to Foolippic and read my comments there.

We want you to not follow nofollow and support us. We give you some very good reasons against nofollow and show you, that there are a lot of people out there, thinking like we do.
12 Reasons against nofollow
- nofollow does not prevent comment spam
- nofollow is semantically incorrect
- nofollow harms the connections between web sites
- nofollow is not useful for humans, just for search engines using PageRank or a similar technique
- nofollow could be used to shut web sites out
- nofollow discriminates legitimate users as spammers
- nofollow heists commentators' earned attention
- nofollow will not stop comment spam
- nofollow could be used to further discriminate weblogs
- nofollow prevents the Web from being a web
- nofollow eliminates the dissemination of free speech
- nofollow was developed in privacy with only search engine companies taking part in the discussion
And this from John Hoke:
I have been running Expression Engine for about 3 months now, and I must say that I can count the spam I receive on one hand opposed to when I used MT where I would average 200 per day. What is the difference? My traffic is the same, I am getting more real comments, and I am using captchas so that it is quite difficult for automated bots to spam me. Is it a perfect solution? No, but it is much better than this nofollow snowjob.

