No they wouldn’t.

• I don’t typically browse lemmy in a way where someone could see over my shoulder. (using thumbnail modes where I have to very deliberately go fullscreen for any images, I do this because I can’t block actual porn as a bunch of the content I do want to see would go with it)
• This isn’t unusual. I’ve used this very image, and even more arousing art, as my desktop and phone wallpapers. My city has public art installations featuring both male and female nudity.

I WANT to be able to tag content accordingly. Because I myself would like better control over my feed. Luckily Lemmy divides things into communities and instances. By subbing and blocking accordingly we can all very precisely curate our feeds.

NSFW tagging has an literal implied use case, for which it is effectively useless. It isn’t how it is actually used, and is hence a wildly inaccurate way to exclude anything. Sensibilities vary, as to me this is less than what public art shows, and to you its porn.