[dredmorbius]

NSFW affects not only the site, but its users.

If a site is specifically intended as, or is incidentally used in the course of, professional work, then NSFW content can literally get your users fired if overseen, logged, or otherwise detected.

That turns out to shift your user demographics in the medium-to-longer term, and not in a direction that's generally compatible with high-quality and engaging content and interactions.

Where NSFW content is permitted, it should be specifically tagged as such, and not presented unless users specifically opt in to it.