Enonymous's "Odd Privacy Ratings"

When the Electronic Privacy Information Center gets a poor privacy rating, you might think something's wrong. It is. Enonymous.com is apparently giving out weird ratings to many Web sites, including this one - earlier, it claimed Slashdot had no privacy policy and now it wrongly claims we share your data without permission. Other sites were getting different readings though they linked to the same policy. Meanwhile, Enonymous' own privacy policy has been challenged. I'm left wondering - if even experts can't make sense of online privacy policies, what good do they do?