For the uninitiated, generally NSFW is for sexual contents and NSFL is for gory contents. People may want to see one but not see the other at any time for any reason. I have seen this feature requested over the years in Reddit but it never happens. Maybe now some instance can finally implement it?
Sometimes NSFW images are appropriate in otherwise SFW communities. For instance, imagine a community on exterior design that had a post with a picture of that building in Germany with the five-story-high penis on it. Or a community for desktop themes that has a post with nudes wallpaper. Or a community about a certain celebrity that posts pictures of her car wreck.
What building in Germany has a 5-story-tall schlong?
Search for “Friede sei mit Dir”
Then you would look at the community name and concluding that the image is about exterior design, but not something you should look at, at work.
I didn’t type my original post correctly.
Looking at pictures of external design is usually pretty safe to look at when you’re at work. I imagine architects do it all the time.