I want to repost this from 'ulfk', I only can find it in Google's cache:
Why is this !@#x* "rel="nofollow" filter applied to posts?? I think it's a privilege to have some SEO advantages out of posting usefull information, it's not hurting anyone. (Not spamlike of course..)
It's because of the quotation marks you put.
"http://drupal.com/"
http://drupal.com/
rel=nofollow is just an instruction to search engines to not follow the link so it won't figure in search engine rankings.
I'm new to Ubercart and also want this feature.....best of luck to you guys on making it. I'll be checking in regularly.