Seriously? Under what logic is it okay to publicly disseminate, often for the express purpose of humiliation, someone else's private photographs whether obtained illegally, surreptitiously, or shared in confidence with you?
You're missing the point. It's not ok, but it is a highly foreseeable consequence of taking nude photographs, much less disseminating them. You'd have to live under a rock and have a Pollyannaish view of human relations in 2014 to have no idea that this is a common consequence. Most often now, it probably happens because someone believes they are special and they won't fall victim to what so many others in their demographic have suffered. In that sense, it is precisely the sort of behavior one expects of a child because children and adolescents are almost completely incapable of believing "you're not special and it could damn well happen to you too."