They also dislike stencil art in general, as it takes far less technical skill and practice to execute. Again, this is seen as yuppie kids ripping off authentic street culture.
The most offensive way to express dislike is to cross out or tag over someone's piece.
[1] http://www.urbandictionary.com/define.php?term=Elements+of+H...
I don't understand how banksy would be cashing in on hiphop culture? I just see him as an artist using a wall as his canvas, I wasn't aware that was reserved for those with a hiphop lifestyle. Was it maybe the "this is my new york accent" piece that draws the association?
Also how do they know he hasn't lives a hiphop lifestyle? I think the same thing exists in London, I have a few co-workers there who seem at least partially attached to it.
I personally couldn't care less, I find Banksy's pieces aesthetically pleasing and I like how he messes with authority. But I know a lot of writers and they mostly detest Bansky. You don't even want to get them started about yarn bombers.