One person says, “Okay, you can do graffiti on the walls of my building”. But what happens when that is allowed? It’s usually a neighbor who doesn’t like it. That is something that needs to be addressed. One person the property owner is good with it, and says “I like graffiti, please use this wall, and if it is good I will respect it.” Then what happens is the person next door, who may or may not directly see the wall says, “I do not like graffiti. This is not art to me, therefore I do not think you should be allowed to have it on your wall. It bothers my sensitivities.” This is where I think there is a problem. Now I don’t think that that is only a graffiti problem. That is a public art problem across the board. I’m sure that not everyone has liked statues that have been built, monuments have been fought over time and time again - the Vietnam Wall is one of the best known modern examples of that. Look at all the arguing going on about what and what should not happen at the World Trade Center’s location. So don’t always think that graffiti is hated by the property owner directly. Sometimes it’s the person who lives down the street and might not see it all but the idea that it is there, that is what bothers them.
http://actsofrandomart.blogspot.com/2011/04/what-can-happen-when-graffiti-is.html