Sounds like there is potential for abuse by people who make bots to use the API to get positional information of players and monsters around you.
Actually, TS3 already has 3D positioning.Unfortunately TS3 sounds like garbled crap atm.Well sorry to hear your bad experience but if thats true you should change to a decent provider :) We certainly don't provide TS3 servers that sound like garbled crap :)
Me and friend of mine first hit this up when they were in the beta of it, and new we use it all the time over vent when just us 2 need to talk. Or when we are in raids (we both usually tank) and I need to talk to just him, we'll leave this open behind vent and talk just the 2 of us. (or gossip about hoe dumb/ stupid other people are, how awesome we are etc.) But I would LOVE to have an add on that would be able to do direct positioning automatically. I think it would be nice, and would definitely try it out if I see one pop up. (i have a whole lot of 0 programming skills, no way i'm making an add on)