Sure, lots of software gets written in Java. And (less so) Cobol and Fortran. Every sensitive Java (and PHP, etc) user who is on HN and feels compelled to respond to every slight has to understand, though:
HN was founded by the guy who wrote Beating the Averages[0].
We're in PG's house. And he never liked Java.
So if Java fans come here with a chip on their shoulder about it and constantly take the bait and get into flamewars about how solid and adequate their language is, they should remember what forum they're in. Not that opinions in the forum can't be changed, but why bother when there's plenty of Java love out there elsewhere?
And I think he's naive in that blog in using single language as a criteria to evaluate developers, but there's another story.
You can keep responding to that dislike, but on HN, given its natural audience, staking out much of a pro-Java position is doomed to futility.