I think this would be a genius idea. I have played other MMOs where it's been used for foolish and useless chat or rants/trolling so I usually filter it off. But I do also believe that FFXI and FFXIV have a more mature player base, and that it would liven up the server. I mean... it's rather depressing walking into Ul'dah, seeing hundred of players, and no one responding to anything.. I can try to look for a group for hours and nothing and no one shouting anything. Not to talk, not to find a group... nothing... I think this would encourage people a lot and also it'd have the players from all over, so there'd have to be something going on.