Is it art or vadalism?
When there is a building with just one name that I believe is vandalism!
But overall Graffiti can be a beautiful thing, graffiti is a good way for one to express themselves, to feel free.
Graffitis not art because it is vandalism and it damages other peoples properties. Street art is acceptable because they always look nice and they have permission to do it. Most of the time graffiti is wrong and ussually vulgur. So thats why graffiti is not art because it is wrong.