The article is sarcastic, though it may not seem to. Take a while and look at the 'about me' page of author - you can read there that his favourite languages (Lieblingsprogrammiersprache) are Clojure, Common Lisp and Haskell. He also has some projects in lisp on his page.

However, haven't I read his page, I wouldn't understand it either. It seems like I'm not the only one who don't get it - it would be nice to hear from the author what was his point.