Quote Originally Posted by Kerwin View Post
Take a moment to think about how many players from different servers connect to one instance, now think about multiples instances that contain those players from different servers, now think about a front line alliance of 3 alliances connected to one instances and all those instances of frontlines/duty finder going on at the exact same time. Now if everyone was able to send tells back to their home servers. Do the math. That would over stress the instance servers ten fold. Servers would go down
I doubt /tells are that much harder on the systems than the FC and linkshell chat that can already go on. I suspect that it's due to a different problem:

/tell "John Doe" Hi
would be confusing if there's both a John Doe there in the dungeon party with you and also a different John Doe back on your home server. No matter which one they implemented, there would be people trying to use it to talk to the other John Doe.