How is it his fault? He's done nothing but antagonize and mock the "art world," and it just loves the abuse. He's been co-opted as an official court jester only

How is it his fault? He's done nothing but antagonize and mock the "art world," and it just loves the abuse. He's been co-opted as an official court jester only because the alternatives are to ignore him (costly) or discredit him (improbable). The most cynical view of his work would be that it is just a set of counter-signals that serve to demonstrate his superiority while knocking the ladder away behind him, as anyone who imitated him would quickly select out. Lots of artists and musicians behave badly to show they are so good that people will even tolerate their latest outrage. Hand, neck and face tattoos seem to be the current fashionable follower trap. It's arguably the same dynamic behind programmers who affect rebel and working class values and ideals. As if to say, "I'm so talented I don't need to demonstrate alignment to the people who keep me in the style to which I've become accustomed." I like Banksy's work a lot, and I don't think even he is this cynical, mainly because he does still risk arrest and jail for vandalism, but he's created something with a life of its own of which he is no longer in control. In that way as an artist, he could very much be seen to have succeeded.