Graffiti Fun

I found this series of images on my less professional blog, but thought it would be cool to shear on here. I like it, although i find it hard to explain why. The artist almost knows that the text will be painted over before it even happens, and makes more of a mockery of the situation every time this happens. It's almost as if the question isn't really about the shade of grey the type is but the shade of grey society. That's what i get form it anyway.