martinibuster - 4:38 am on Mar 27, 2010 (gmt 0)
Don't sweat it. People who are hung up on PR usually are the ones who know enough SEO to hurt themselves and others. Check their backlinks and I am confident many of them are going to have crap, including nofollowed blog comments. You're better off without them and should be happy they are self-selecting themselves out of your backlinks.