It is being fixed. Everyone will be able to see FS/T but you won't be able to post if you have less than 50 posts.
After the recent hacking attacks, the forums went back to a stock version of vBulletin. The tweaks that were previously in place are being added back in.
(16) No BUYING, TRADING, or SELLING anywhere with the exception of the For Sale / Trade forum. The FS/T forum has its own set of specific rules and has a required 50 post minimum to participate. WARNING: Do not spam the forums to reach the required minimum, your posts will be deleted or your account banned outright. Please read their rules before posting in that forum. No PRICE CHECKS allowed. [H]ard|Forum is NOT RESPONSIBLE for any loss due to any sale or exchange of any item in the For Sale / Trade forum. Caveat Emptor!!