In the lead up to the launch of this title I see that our rule set wasn't updated. We'll be updating that shortly. That said, Naming-n-shaming has been prohibited since Black Ops on PC. You may feel that the tool is inadequate, but it is the direct and correct approach to take.
Edit: Our rules have been updated. For transparency, please see our Community Forum Etiquette and Guidelines in the Black Ops 2 sub-forum for evidence of existing practices.
Chief Forum Moderator
Modern Warfare, Black Ops, Ghosts