I've noticed this too. It might be a chicken-or-the-egg thing though. I think LLMs learned this sort of "punchy" writing style from the blogs of software developer who blog and from Linkedin posts.
I have had arguments about it with GPT-based Copilot. I had to write a difficult paragraph and did go back and forth with it for advice but used at most a half-sentence from it, GPTZero thinks the paragraph is human written. I’d tell it “if I used that people would say that you wrote it” and it would say that it thinks it writes better than most people.
PaulHoule|16 days ago
I have had arguments about it with GPT-based Copilot. I had to write a difficult paragraph and did go back and forth with it for advice but used at most a half-sentence from it, GPTZero thinks the paragraph is human written. I’d tell it “if I used that people would say that you wrote it” and it would say that it thinks it writes better than most people.