Something big is happening, as Reddit seems to have purged literally every NSFW sub they know. Reason is always "unmoderated" despite some of the banned subreddits being fully moderated.
Edit: seems to have been a bug in automation (thanks @lefty7283@lemmy.world):
https://old.reddit.com/r/ModSupport/comments/1ii67mt/_/mb3fewv
It's still a good reminder on how quickly a community (or communities) thousands of people enjoy and in some cases rely upon can disappear.
Idk it was like 2 years ago. I just remember looking through fediverse guides and instances were labeled as either allowing NSFW content or not, no nuance. I didn't dig into whether the specific instances were defederated from lemmynsfw nor did I even know to look for that at the time.
There's not that much NSFW stuff that isn't porn but I come across it occasionally. Usually jokes, sometimes people will also be very cautious and mark shit that isn't really. I prefer to be largely unconstrained with what comes across my feed, just don't care for the random puss intermingled.
I think when people talk about an instance allowing NSFW or not they mean pornographic content.