The end doesn't justify the means. Contrary to what Hollywood portrays on the big (and little) screen, violence, murder, and mayhem are not the answer for the same.
I gotta agree with Don. I despise all the "adult" crap out there, online and off. but the law of the land has allowed it, and that law must be obeyed. using illegal means to take down a porn site, or arson to destroy an adult bookstore, only makes the perpetrator guilty of the crime he commits in doing so, plus destruction of private property.
I know several hackers. Many are what you would call "white hats". They crawl around inside the code of stuff to find ways to improve it, or change it. They do so legally, and without harm. What I'm reading here sounds more like a techno lynch mob.