[jmmcd]

It's interesting that Claude also over-uses en-dashes. It's very willing to create compound-noun-phrases, especially in that compressed-summary-paragraph it often writes. The 0-days-vibes-vulns that started this thread looks a lot like that, but it could be Claude directly, or just Claude's style influencing people who spend too much time with it.

[semilin]

Those are just hyphens, actually. En dashes are for ranges (e.g., 1–4, which is admittedly hard to distinguish from 1-4), not compound words. Point stands though—LLMs do love compound words and dashes in general.