It's a reaction to the overvaluing of joke posts on Reddit, Digg, and such, no doubt.
I actually wouldn't have bothered even replying to the guys comment except that this is an issue that has irked me about this site for a while. Humour - by and large and in the right proportion - gratifies my (and I think many people's) "intellectual curiosity". Some here should take a chill pill when it comes to being the humour police.