A 14-year-old boy in Britain has been put on a "dangerous to children" list for sending a nude photo of himself to a girl the same age.
"Inappropriate" is a keyword for "We want to punish you for this even
though we can't point at anything in it that did wrong to someone."
It is true that sending someone a nude photo of yourself can have bad
consequences. There are inherent bad consequences: for instance, the
person you sent it to might resent receiving it. I wouldn't risk sending
a nude photo of me to a woman unless I knew positively that she would
take it favorably — and I'd have to look somewhat more attractive
than I actually do.
But there are also artificial consequences, like being put on the list.