Can i get banned if i say zero tollerance words in a team of full premades?

Is it okay if i speak bad with a full premade team? I've seen cases where one got banned because there was at least 1 non premade in the team. So if there're 0 non-premades in the team, and i say bad words to my teamates which in turn will laugh (that's what friends do) and they don't report me, will the bot still ban me? PS: I didn't get banned, i'm just asking in case this happens in the future.
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