For HN comments, 99.9% of the time, a short comment is a low effort one and should be disregarded.
I tried to recall the last time I saw what I felt was an ego-driven tirade on HN comments, and I'm currently drawing a blank. There's a lot of what's called "performative erudition", and there is the occasional lengthy diatribe, but I would call neither one of those ego-driven tirades.
(brevity, purposeful /s).
With LLM's, we are in a new state of the world: it can expand any one sentence off hand remark in an essay.