Here is a short clip of Sam Harris talking about the value of outright mockery of retarded ideas:
http://www.youtube.com/watch?v=szn6cG8fQl8
Obviously we need to have good scientific rebuttals to bad ideas. But some things are so far beyond reason that it has to be said by at least one source that these things are just plain fucking stupid. Then, with that point of view made known as an alternative to the very strong and common point of view that such things are true, we can examine the evidence for both sides.