Did you ever think of the real reason these people are laughed at? The theory of evolution is so strong that papers blatantly challenging the foundations of evolution are usually quite laughable. Now take something like cosmology for instance, one person recently submitted a paper claiming there may be no black holes. This was a serious challenge to cosmology theory as we know it. Because his paper was intelligent and made a lot of good scientific points supporting his idea, it is being quite well received. If someone comes up with something as equally academically valid against evolution, it would have to be accepted also.
Think of it this way. I'd get laughed right out of the house too if I went to a meeting of theologians with a big paper claiming Christ was gay (I've seen these papers, they are stupid).