For example, I want to be able to make short notes on other player and see them in game. Or there would be useful to mark player as lagger and see his lagger-rating.
In order to be able to implement such things we need to allow mods to send and receive messages via GPGNet. I checked code of ICE adapter and it seems it is not very hard to implement message routing for interop with external services.
So the question: why nobody implemented it? Is it prohibited by something or what?