Seems like a way to shock the people actually putting real effort into vetting a candidates resume/credentials.
Maybe a warning that it’s nsfw would cause less extreme reactions.
We must calibrate our messaging to have the intended effect. If what you’re putting out isn’t being received as intended, modulate the signal.
If I had worked in NSFW and an application would get rejected because of that I would sincerely thank my former job for saving me a job in an environment I would not want to touch with a ten foot pole.
If people in (even small power) like HR drones abuse their position as to flag a resume because of such a former experience I doubt there is a company culture of honesty, openness, respect or value of the individual.
To me personally a great filter to have.
If one is desperately in need of a job. OK - remove it and try to jump ship once secured in the current place.
I call this the traffic warden principle: Power corrupts. Absolute power corrupts absolutely. A really tiny amount of power, in one specific area of your life, corrupts even more.
(Also, FWIW, it's "people in (even small) power", not "people in (even small power)".)
Want to get into FAANG? Corporate HR is dominated by women, better clean up your act.
Wanna get hired by the hot bro-startup to be single-digit-employee? No purge necessary - if anything, those blue entries will score more points.
Pro tip: Your resume is your greatest hits album, not an encyclopedia entry on you.