It's been a month or two that I noticed it.
Sometimes, if you typed the word FREE as F_R_E_E it would work also
To my surprise, http://reviews.cnet.com/5208-6122-0.html?forumID=44&threadID=165735&messageID=1832850 contains a link to a url containing the string 'free'. Quite legit, in this case, it's a member pointing to a freeware download site, but the forum software used to mask these links. Is this a intended positive side-effect of the new release of the forum software?