I Don't Prevent the Wikipedia Isn't It?

Anybody can graffiti anything they want to. I don't prevent the question was how do you prevent people from mutilating. Cities have been benchmarking around physical graffiti in New York City where there's tons of graffiti and lots of other places. The one single thing that was most effective at stopping real graffiti in cities was a 800 number to report it, he says.