PM people in dungeon

[Niwashi]

I would imagine in this instance /tells would automatically be send to PCs from your native server.

But that could cause a lot of confusion if you try using the /tell to talk to a party member in the dungeon with you. (And I'm sure plenty of people would try to use it that way.) If someone on your native server happens to have the same name, they'd get the message you'd intended to go to someone else. It would just be too error-prone to be a good idea.