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.
You should still be able to navigate to those posts by changing the link to old.reddit.com. But I assume that will go away at some point too.
And the Firefox extension "old Reddit redirect" does it for you!
I love that extension
Or just switching to Show Desktop Site