> Actually it is the opposite, it is a scream from those who don't really have a voice in the city.

It is most certainly not. This romanticizing of criminals and vandals is not any kind of compassion. Who would like their neighborhood or home turned into a hell scape?

Edit: To those who downvoted my comment, go look up some pictures of how these neighborhoods look when they are all covered in tags. Ask yourself if you would want to live there? But of course it's easy to be such a benevolent and tolerant hacker, when you don't have to live it yourself...