I actually disagree on how they ban people for saying "kys" instead of muting them... yeah ik ur thinking in minigames u can't mute people or ban them so instead they just ban in the lobby for 3 days but why 3 days, they could just ban the player at the same amount/time of how they will mute the players in other gamemodes... like isnt that a bit too strict to ban players instead of muting them?
Support. But to be honest saying "kys" in chat I wouldn't exactly say that it's harming the community, because mostly when players say it's to joke around but then of course your haters go ahead and report you and that's what gets you banned.