Quote Originally Posted by CraigTW
We’re cracking down on an issue the community identified where players could gain an advantage by “rage quitting” the game. Now, for match-made battles, the host will receive a win if the client uses ALT+F4 to exit the game. If the host disconnects, neither player will receive a win. This is a partial fix for the problem, and we’re still working on it, but for now this will hopefully improve your online multiplayer experience.
So... this implemented yet?