I think that's a really dumb idea. Why would Sythe want to advertise other forums from his own? And are the forums that need advertising such sad places that they cannot get any members from doing it the old fashioned way? Do we need leechers making 1 post accounts to post links to crappy forums? I personally don't think so.
I mean, you pay for a forum on Sythe.org, and you get your own little area, where people can post and discuss things/stuff about your website. It's great for earning more money to fund Sythe too.