Blizzard has fun with people abusing trolls in Overwatch
Every now and then in games you'll find people being smug at their easy win and can even take it one step further by even worse in chat. In Overwatch this can be especially bad as games tend to be over in a matter of minutes and any number of things could cause the game to suck for the losing team (including lack of players).
Thankfully Blizzard is doing something about it and anyone entering "gg ez" in chat will instead get one of several predefined sets of text, which makes you feel like a plum.
This isn't the first time Blizzard has taken a stand against smug emoting as Hearthstone completely removed the "Sorry" emote due to it's consistent abuse.