pretty muchNot sure.
If someone is uncapable of not caring about a random kid writing "gg ez" on the internet........ well........
It's a competitive enviroment, it's a random dude writing stuff in a text chat.. get over it.
edit: and i'm not defending idiots that use to write "ez" in chat. Because they are idiots.
I eyeroll at a lot of people who accuse people of being thin-skinned when the person is being racist or homophobic or saying "rape" a lot but... Someone saying "ez" at the end of a game is the weakest form of smack talk. If you let that get to you then you probably are being thin-skinned about it.
edit: also it's kinda hypocritical considering a lot of heroes have the ability to smack talk the person/team you just dominated. D.VA says "GG" and "easy mode".