So the girl sent a naked photo of herself to her "boyfriend", who then forwarded it to all of his friends, including your son
How do you get this from:
she sent it to half a dozen boys
You seem not to have read what was said and assumed this - not that I doubt it has happened to some girls.
I would assume teh school had some idea about the girls background and the impact her actions had on her so would assume lack of punishment was based on that.
However punishing a boy for receiving an unsolicited text with picture who deleted unwanted picture immediately with no background of cohesion seems harsh.
Most of the sexts are of girls bodies, not male bodies
Wouldn't surprise given our culture but I haven't read this as a fact anywhere else.
I have read accounts of boy as well as girls having picture being taken unaware or being tricked into sending pictures and being left suicidal.
So I don't want any of my children caught up in texting so will be teaching them all to be careful and to not to trust other people with naked pictures of them at all.