If I was able to I would not allow links to be posted outside OtLand, but the GNU GPL does allow anyone to redistribute the server. It's better to have all users here where the real developers can provide support and where users can find the best resources for TFS.
But I don't really care so much because people who release TFS outside OtLand are only advertising for OtLand, it's just a matter of minutes or hours before someone who has downloaded TFS from another website will find his/her way to OtLand.