CainIV - 4:35 am on Jun 30, 2010 (gmt 0)
Interesting topic. I am surprised there are still people out here doing this after Matt Cutts was so clear about it.
I am wondering how this might affect a redirect on the same website where the nofollow attribute is not used, but where the redirect page is blocked by robots.txt. On one website I use a redirect tracking script as an affiliate, and the url that launches the script and is linked to is setup as disallow in robots.txt
I had heard some rumblings that in those situations Google might treat the link as a nofollow.