Counter point: when this isnt an obscure thing, and kids are aware of it, they will purposefully use trigger words because they are kids.
If kids/people are having mental health issues, whats the best way to handle that? By scanning for the symptom and telling them to stop being mentally troubled? I really doubt kids are getting the care they need based on these flags. Seems like a bandaid for cultural/systemic issues that cause the mental illness/harm.