This policy seems to be incompatible with the existing Fanlore policy regarding wallet names and pseuds. Making it an option for the uploader to identify a fan in a photo as "a fan" or to identify them as "astolat" can make a very short jump from pseud to wallet name.

Also, some public conventions have explicit photo policies banning posting photos without consent of the people who were photographed, so using "public" vs "private" as a context clue doesn't consider the many fine gradations of public-ness.