Yes.

The pre-LLM equivalent would be: "I googled this, and here's what the first result says," and copying the text without providing any additional commentary.

Everyone should be free to read, interpret and formulate their comments however they'd like.

But if a person outsources their entire thinking to an LLM/AI, they don't have anything to contribute to the conversation themselves.

And if the HN community wanted pure LLM/AI comments, they'd introduce such bots in the threads.