This is not true, at all, when we are playing we don't ban people live (as a player).
What DID happen, because of Reddit hearsay as what happened recently, I will clarify, players were warned for being toxic in chat and that is it, no ban was applied. Later, players were chat banned because of language used in other battles. And they connected the two and said that is what happened.
If players get chat banned it is typically for offenses said in the past and the bans are applied when we review chat logs or if a player gets enough reports from other players.
If you see me in battle and are being toxic (and many of you have seen me do this), I will actually remind the player of the rules because I don't want to see someone get chat banned over saying something inappropriate.
-Hapa