http://www.overcomingbias.com/2011/01/how-good-are-laughs.html
http://www.overcomingbias.com/2010/07/laughter.html
I find these "jokes" pretty creepy myself. The facts about Chuck Norris is that he's a washed up actor selling exercise equipment. I think Chuck Norris jokes/stories are a modern internet version of Paul Bunyan stories in American folklore or bogatyr stories in Russian folklore. There is danger here -- I don't think these stories are about humor.
There is danger here -- I don't think these stories are about humor.
What are they about, if not humor?
If you know more Eliezer Yudkowsky facts, post them in the comments.