I was saying that TrackerFF's post seemed to me to be unrelated to the article, so I was confused why it was posted. I'm sure other HN readers were confused by the comment as well. I was asking for clarification. TrackerFF or someone else could then clarify the relevance, which I and other HN readers would find useful.
My confusion wasn't feigned. I'm actually confused how the comment was relevant to the article. Someone being confused and asking for clarification is a common way that conversations progress and learning happens. It's no one's responsibility to comment on HN. If someone wants to discuss this, that person can reply.