What about an option to remote-view other zone's shouts? it won't make any huge alteration to how shouts are used for groups at the moment, and you can merely select the zones you would like to view remotely. Ex. Port Jeuno, plus any zones where a mission/NM you want is located. Those who have no interest see no real change to how shouts are used, but those interested in doing other things can see the shouts they want to see. No serverwide spam, only the shouts from the places you are interested in.