I've been trouble with this story since reading it yesterday.
What I find particularly strange is this, if someone commits a murder, even someone seriously disturbed and mentally ill, they will not take pictures and post them on the net for others to see and also, a violent offender, a violent bank robber, shop lifter...you get the picture, whatever crime.
Yet what is with this need, apart from pornographers who are into this crime to make money, but the others, what's with the need to let the world see them offending? What are they trying to say about themselves?
As for tracking them down on the net, there are geniuses out there who could track the majority down.
Listening to the radio the other day, a man rang into a talk show on internet paedophilia, he was a computer geek. He had been surfing and was offered images of a child being molested at a certain time of the day and the address and payment details etc.
He rang scotland yard, but they didn't know what to do. He rang the US and the FBI and within a few minutes they were taking all the details from him.
Later that evening, they rang him back thanking him. They had tracked down the child, rescued him and arrested several men. It is possible. All it takes is know how and more money put in by governments to catch these people.
My older kids are computer fanatics. they have a friend, who is probably the kind of person the police look for when they want help hunting down these people. Every bit of software on his computer is 'illegally copied' and he taught them to fight back using 'certain soft ware' if their computer is under attack from another hacker. Clever dude and he's still studying and learning more. He can track down any signal sent by anyone. These clever people, naughty in one way, but used correctly are invaluable to society and the stopping of internet crime. Ane are they being used enough....not yet. I hope things will change.