> because 70 of 140 comments under this submission are owned by this thread about AI.

This is an effect, rather than a cause. The root cause is often (but obviously not always) that the submission was written with AI to begin with. In instances like this, it is useful to focus on the root cause, not a proximal effect.

> And this is usually not what you want when you click on an interesting submission

More importantly: overly-verbose LLM output is usually not what you want when you click on what you thought would be an interesting submission.

In general, reading comments written by actual humans about how a submission is AI, is preferable to reading a long submission written by AI. If I wanted to talk to AI, I can do that without HN. HN is where I come to discuss things with people.