CustardFist

Eh, there are private and small workspaces and then there are public and large workspaces.

If you work anywhere that an 80 year old grandparent coming in to buy a cup of sugar might see your computer screen or your 17 year old highschool junior co-worker might see your phone in the lunchroom it would be NSFW.

Plus it isn't really strictly for work, it's just for general spaces where you aren't alone or at home, or in a controlled environment where you know the people in your immediate surroundings would be chill. NSFW would also be a flag for if you are on a bus, or a hospital waiting room, in line at the bank, etc.