Hi, removing the ability to /who opposite faction WM players isn't a good enough change.
I've been trying to hunt down some war mode players (while also being in war mode) but since they can add me to friend's list, they are able to see which zone I'm in. When I enter their zone, they just log out.
Should make it so that if a war mode player is on your friends list, they show online, but the zone says unknown (regardless of faction). This would make them a bit harder to track down, but would also prevent them from knowing you're in their zone.