That’s an en-dash – and I use those myself. (I’ve experimented with em-dashes—brefly—but it doesn’t look good to my eye in English.)

It’s all by the vibes, I don’t have any concrete proof. FWIW, the comment seems at least hand-edited, so maybe it’s just this “the [A] is the [B]” trope that has triggered me. If the rest of it is readable, then I apologize, but still: that’s a bad title, please don’t use this – unless you’re writing a LinkedIn post.

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Edit: here’s another LLMism example from another HN user: https://news.ycombinator.com/item?id=49996255

For me (not the OP) I see the patterns 'The X is the Y', 'Every X is a Y' (both of which are there) and llm-sense tingles. Add in Not A, B, C or Z and I'm increasingly convinced it's LLM generated text.

OP didn't quote the part with the em dash, they quoted the part with the "The X is the Y", which is a common LLMism.

not that