Advertising Runescape Clans inside the game

Just bumped into this thread on RSC. I always knew that I am not allowed to advertise Runewise or Runescape Reader's Digest inside the game, despite the fact that both sites does not have any RWT ads, cheats or any other bad stuff (in fact, Runewise does not have ads at all). I accepted it, at least everyone was getting the same treatment from Jagex. But not anymore!
Apparently a privileged set of Runescape clans (distinguished by admission to the hidden forum for Runescape clan leaders) is allowed to advertise their web sites inside the game. What a joke.