RCK has now semi-disabled Visitor messages, however they are still viewable, but no one can send them any more.
I have sent RCK details of how to remove the Visitor Messages completely (including GM's, moderators and Admins), so they'll no longer be active in the user CP. I took the liberty of installing a local copy of vB 3.8.8 on my PC so I could assist RCK in the complete removal, Mwahahahahahahaha!
Tis very lonely in here