Is "ez pz", "izi", "ez af" considered unsportsmanlike behavior?

Hey! The classic at the end of the game or in the lobby, after the 30 min+ game the "easiest game of my life", "easy" etc so im just wondering if its reportable and bannable, not just for ranked but for normal rift or aram. Im not saying banning them for 1-2 weeks, but at least dont let them use the chat at all for 10-20 games or so, maybe they will learn some matters and have less hahah ez kids in the game. Play for fun and relax, not to piss off the enemy team after a loss cause hahah look at me im a cool kid i type ez hahah What do you guys think?
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