Might as well take off the IRC then... after all it can help some people do just that. Then there is IM services like MSN and Yahoo Messenger (anyone actually still use that?) or Skype or Ventrilo.... not to mention email, phone, text, physically talking....
And if anyone has any evidence that communication on those forums is meaningful influencing the IC game experience, without there being reasonable IC corollaries, to the detriment of other players, they should bring it up before the Magistrates.
Or this forum, for that matter, would be included in that.