i think there is a difference between nude photos and pornography. I guess the "spiciness/sexy" factor determines where it leans to
nudity is often also used as a tactic to make something more marketable/shocking/controversial... to me its justified if it contributes to the overall story
if the photo is just about a naked woman drinking coffee for clickbait then that's lame IMO... but maybe its about someone selling the clothes off their back for that cup of coffee? maybe its a showcase of caffeine addiction.. if its something with a little more depth than "naked because clickbait" then nudity i think is justified
i like this example from gregory crewdson https://artblart.files.wordpress.com/2017/09/installation-r-detail.jpg the nudity seems to add a layer of curiosity/reflection in this photo
then there is also this series which i think is super neat. its a display of the human body from various athletes https://www.muscleandfitness.com/athletes-celebrities/news/17-stunning-photos-espn-s-11th-annual-body-issue/ there is no display of genitalia but i would argue this fulfills its purpose and ultimately is about the naked body
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personally i always utilized nude photographs for learning how to do figure drawing and anatomy studies