Marxism - philosophy or hoax? You know, judging by reports from his lectures, Kant was quite a cheeky chappy with all sorts of wild ideas, therefore I propose that the Critique of Pure Reason was a hoax. Now, of course, I don't know anything about Kant or his ideas because I haven't read him but I know I don't like his type much, so you should probably take me and my idea seriously and spend time debating this.
Oh, and here's some links to two articles critiquing Kant to make this seem substantive.