When you take a look at the memberlist of this board
http://images.spamgourmet.com/phpBB2/me ... &start=100
you'll find that there are a lot ot "0 posts" accounts that provide a homepage. A closer look and you'll see that a lot of members have the same homepage, differ only slightly by name or point to a "commercial" page.
Maybe you should take actions against automated registering; it's kind of humiliating when a fight-spam-board is spammed.