The letter Martin wrote literally explains why you wouldn't be able to see such comment threads, as a result of the way HN's moderation works. Did you bother to read it?
Also, don't even start with the whole "Asahi Lina = Hector Martin" thing. You're literally echoing a Kiwi Farms thing and wondering why people accuse HN of having an overlap with that site?
I browsed the comments of previous Asahi Linux posts with "show dead" switched on and that's all I could find. I couldn't care less if he presents himself as a cartoon character on his video streams, I only mention it because that's what the flagged comments on those posts were arguing about.
Perhaps you could link the comment threads that you believe is evidence of what he's saying in that message?
Also, don't even start with the whole "Asahi Lina = Hector Martin" thing. You're literally echoing a Kiwi Farms thing and wondering why people accuse HN of having an overlap with that site?