I liked this part of that essay:
“This of course is a quotation from Ernst Krieck, a notorious Nazi ideologue, who was rector of the University of Heidelberg in 1937-38. I was flabbergasted – well maybe not flabbergasted – when I came across it. This doesn’t show that postmodernists are Nazis or anything. What it shows is a kind of uncanny overlap of ideas between, on the one hand, left-wing postmodernists, and the other hand, extreme right wing nationalists, whether they’re German or Hindu nationalists.”
Whether he’s right or wrong, this is why the debate that Sokal started matters, and is why, intellectual impostor or not, philosophers too should pay attention to him.