That stickler for language part is useful, but your point about who's in the photo is the real use-case I need! In my photo tags I've already found myself differentiating specifically for risque photos --I feel a lot more at ease sharing photos of just myself in a bikini than photos of me and a partner in our swimwear! (At least without checking with the partner first).

Since I'm fairly early in on my Grand Photo Tagging Adventure, it's pretty easy for me to make adjustments now (while I only have to double check a few hundred photos rather than thousands). If you have any other tagging advice I should be thinking of, I'd love to hear it!

~Sor