Banksy later wrote that the urge to destroy is also a creative urge, which was a direct Picasso quote. Some people even believe that Banksy was even in that room as it happened in disguise, likely watching with a smile and a video was later released of someone fitting the shredder in the frame. Some people believe the destroyed work is now more valuable than it was when it was, in fact intact. So Banksy's art is phenomenal and his real identity isn't exactly revealed