It is a very sensible and reasonable comment- literally all questions I'd want to ask to replicate the setup, in a format that's easy to parse. If the author did use LLM it did not substantially alter the content of their question.

I thought it was a reasonable comment and, like you, I thought they were good questions. I haven't followed what kind of watermarking LLMs are putting in their output that might be a telltale for their use so maybe it's readily apparent in a way that isn't to me.

I'd be mortified if a comment I made was accused of being LLM-edited or "created". I don't use any of that junk but if I'm reading LLM output and not realizing it I just might be adopting some of its mannerisms and styles with realizing it. That's chilling.