People that are too dumb to understand satire while pointing out why it's satire are indeed dumb, and should laugh at their own stupidity. But people on HN care more about being smart than self-aware, which is why this site is full of the funniest comments. He may as well be arguing about why eating babies is a bad idea after reading A Modest Proposal.
But are we dumb or is this just a reductionist take at something that actually has some reason behind it?
Things simply stop being funny if you feel like important background is missing, no snobbery needed.