Earlier quoted context omitted.
> trigger an immune response, which is not something you generally want to do to your readers In general, you expect readers not live «immune response[s]». It is called "sensation", and you either expect readers to be mature and having learnt to manage it as much as they learnt all other physiological and emotional and intellectual control, or if not mature you want to expose them to the world of serious adulthood fo…
Depending on what you're writing, sensation might well be the entire purpose of the writing. So words that trigger the wrong sensation should absolutely be avoided, and not used to test the reader's maturity or anything like that. However, these sensations are extremely cultural. As a non-American, it's funny to see Americans trying to impose their cultural sensitivities on other countries and cultures. Like criticis…
That would be immoral... Pornography is supposed to be an exception, a consensual experiment - not the standard of communication, on the opposite. When you deliberately try to make the reader lose control (e.g. for manipulation, or paternalistic trickery), that IS immoral.
> So words that trigger the wrong sensation
In whom? What makes "sensation" legitimate? How can you assume a reader will get that "sensation" - which, also, is not supposed to have in the first place? You say it yourself: «...trying to impose their cultural sensitivities on other countries and cultures...». There seems to be an attempt to create a "standard demotic" - but it remains demotic, and with extremely weak foundations without grounds for universality.
> not used to test the reader's maturity
No no no no no no no no - that was never meant (why should one do that? That is perverse, and something akin was the whole point). What was expressed is that you do not hide adulthood to children - otherwise, they will remain children.
Edit:
and by the way,
> However, these sensations are extremely cultural
Also the use of sensational language is "cultural", localized in some areas: you can see that it is found more frequently in some territories. It remains objectively immoral to attempt speaking to the visceral instead of the intellect. It is like tapping one's arm to steal from him. You communicate to provide further awareness, not to reduce it; to provide further abilities, not to lower them. If you did the latter, you'd be a criminal.