Do you think graffiti is art?
I've heard my sister talk about some amazing graffiti in Germany, and I think that sounds like art. I'm sure it exists here in the US as well, but I think just "tagging" and putting your name or whatever is not art. It's just defacing something that otherwise could be beautiful.
(I love old buildings so graffiti is loved by a lot of people in this type "community" of people, so I'm in the minority. I think it trashes the beauty of old buildings.)