Like burning an effigy, to get those cathartic blood lust juices flowing and derive some pleasure/emotional relief from them, you really need to have a personal attachment to the subject matter. To me Hitler is that guy that caused the efficient slaughter of up to 80 million people in 5 years because he thought Germans deserved the world. I don't care enough about his legacy to piss on it, it's disgusting. I can see why some might, particularly many Jews, Poles and Russians, their recent ancestors bore the brunt of Hitler's personal touch.