Your GP did not treat HN as a single person, they are simply pointing out population trends. And these trends are important when analyzing the dynamics of a democratic (upvote-based) content platform
HN is not really a pure "democratic (upvote-based)" system as moderators can (and do) "interfere" in the process - they can remove comments or bring a low ranking comment to the top of the discussion if they feel that a discussion on that might be more interesting for the HN crowd.