Actually in this article, when I re-read it, I think it is written in a sort of ironic/fun tone.
Although I love clojure, I understand the disappointment in not being "lisp all the way down" - there is something satisfying about the purity of that approach, if it is practical. Maybe one day...
I don't think they necessarily do - they're just saying what they think, but then other people read it and get annoyed (justifiably.)
That's the thing with blogs, the entire world can hear your opinion, and sometimes it would have been better if they didn't.