I agree with several other commenters pointing out that the comparison is badly made -- throwing Ruby, PHP, Perl and Erlang/Elixir in the mix would make for much more interesting and useful article.

Probably the author needed to let off some steam. We all do it and I think HN is being pretty harsh on people being people. I am convinced every single person criticizing has been flaming in the last one month, in one platform or another.