I suggest adding special characters to the kill notification in game.

Currently, when a special character is in a players name, it displays as a square. However, this isn't the case in other places in the game (chat, friends list, well basically anywhere but the kill notification).

I personally have a special character in my name and it's often looked down upon as being a dirty name (for smurfs or new players). Simply displaying the special character will change the polish of the game as well as hide "poor" matchmaking involving smurfs and new accounts.