It gets pretty tiring on HN/reddit to watch people demand so much shit for free, namely other people's time. If you've ever run a project with users (most people haven't), you've experienced these demands first-hand.
It's nice to read these sorts of posts when it's getting you down.
For me it was the recent outrage at Elm's creator. Random people on HN/reddit basically acting like they were some disgruntled paying customer. You can see a common thread with Rich's defense of Clojure.