> She was charged with trafficking in child pornography, which is somewhat understandable.

I'm not sure how. The intent (as I understand it) is to protect minors from predators and exploitation, not to give them a criminal record for their own actions - consider that the perpetrator and supposed victim are one and the same in this case. Had they charged others who viewed/shared the photos in the chatrooms, that would be understandable, even if they're minors themselves.