My comment was something along the lines of this:
You can learn new skills by taking classes on them. In other news, scientists identify fluffy white object in sky as a 'cloud'.
On HN, though, please don't make snarky, shallow dismissals of new work. (It's far from obvious that you can learn any new skill by taking a class on it, and there's other interesting stuff in this article.)
My comment was something along the lines of this:
You can learn new skills by taking classes on them. In other news, scientists identify fluffy white object in sky as a 'cloud'.