Without censorship on SN, I had just assumed SN would get polluted with "look at these" types of image posts, asking for sats, and nonstop "begging".
I don't know that I've even seen more than a couple nudes/selfies here, in the year and a half since I've been on SN -- and even more surprisingly, there have been relatively very few begging posts as well.
Not sure if that means an nsfw wouldn't work, just that there doesn't appear to be organic demand for it.