HN appears to encourage it, because it shows a text box which becomes a top level comment when you submit, although it isn't obvious that will happen.

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Sharlin 5 hours ago | parent [-]

Huh, that definitely explains it. I wonder how many people know that. In that case it's particularly unfortunate to downvote the OP simply for filling a field in the submission form! Sigh… I guess it's another case of LLMs having made the world a little worse for everybody.

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jagged-chisel 5 hours ago | parent [-]

I don’t think it’s because the comment was submitted. I think it’s because it reads like LLM output.

Personally, I’ve only ever provided a summary if I felt the headline wasn’t clear enough.

	▲	Sharlin 4 hours ago \| parent [-]
		Yeah, but before LLMs we didn't have "reads like LLM output" as a downvote reason. In 2022 nobody would've had qualms with the phrasing of the comment.