Assuming this is actually by the guy, here is what the linked article says about child porn:

In the US, it is illegal to possess or distribute child pornography, apparently because doing so will encourage people to sexually abuse children.

This is absurd logic. Child pornography is not necessarily abuse. Even if it was, preventing the distribution or posession of the evidence won't make the abuse go away. We don't arrest everyone with videotapes of murders, or make it illegal for TV stations to show people being killed.

Wired has an article on how these laws destroy honest people's lives.