Yes, there is a comprehension issue here. Everyone else understood this as a discussion on whether the author is being arrogant and dismissive in this section. You seem to be looking for a discussion on whether anyone really writes C libraries in a cave with scraps.
Nobody here but you is taking the "cave" and "scraps" literally. It'd be total nonsense if taken literally. Like, what would it even mean? It's obviously the author trying to make their writing punchy. You should not take it any more seriously than their threats to snap people's necks for talking about AI.
If you want to ignore than actual discussion and steer it toward a discussion of an interpretation of the text that's so literal that the text doesn't even make sense, you should probably be very explicit about it.
No one's discussing whether he's arrogant or not, they've all made up their minds. I gave an alternate, more charitable interpretation of his words, that would offer an otherwise offended reader a way to reframe the blog, and not dismiss it out-of-hand if they took his words as a slight. I believe this interpretation.
"Please respond to the strongest plausible interpretation of what someone says, not a weaker one that's easier to criticize. Assume good faith."
"Please don't post shallow dismissals, especially of other people's work. A good critical comment teaches us something."
Nobody here but you is taking the "cave" and "scraps" literally. It'd be total nonsense if taken literally. Like, what would it even mean? It's obviously the author trying to make their writing punchy. You should not take it any more seriously than their threats to snap people's necks for talking about AI.
If you want to ignore than actual discussion and steer it toward a discussion of an interpretation of the text that's so literal that the text doesn't even make sense, you should probably be very explicit about it.