The Internet, just like which the implementation of everything else, the US Constitution, wasn't done right. Sometime down the road you realize things should've been done differently.
Personally, I don't think webcams or webcam apps or websites should be available to anyone under the age of 16.
Parental controls on Windows, OS, Smartphones, Tablets, iPods HAVE TO get better.
If there isn't already, there needs to be some sort of app that can detect if you're sharing pornography or not. Sexting is a big problem, as well.
Also, they need to find a way to make it next to impossible to hide your identity online. Some of these sites allow you to link your profile to things like Facebook and Twitter, and the user can set up access to anyone or only those with Facebook, Twitter or whatever. Even so, it's better, but still not full-proof. Where there's a will (or in this case, a coward), there's a way.