I think they are really funny, like a few others, I have been reading toms for 4 or 5 years now, and I have to admit at first i thought they were real articles and was wondering what was happening, but now that they are more regular they always keep me amused on the long weekend when there are no real articles, i especially enjoyed the great article about bing this weekend, but i do understand what people are saying about this being a serious site and the joke articles possibly detracting from the objective and informative reviews and articles, i think a good middle ground is the publish them during the weekend and then remove them from the feed on Monday when a new set of articles are published, then they can be funny but not detract from the authenticity of the site.
Other people said they have other sites to go to for humor, and there are plenty, but I haven't seen much high-tech humor in this style, with such an amazing cross of subject matter knowledge and humor anywhere else.