Except the ninjas won't do anything to someone's post or reply if it's just "kid" "get good" or childish insults. They just set and laugh at you for reporting replies like that.
They only focus on replies that are insulting people in a vulgar way with nasty language.
But if someone calls you kid I assure you nothing will happen except ninjas laughing at you.
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That's common in online communities, you're free to insult anyone as long as you sound harmless enough. I once got banned for using the F word after a guy told me "you must not be very intelligent" (i.e., calling me an idiot).
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