The folks who are qualified to write articles and papers on the topics that might interest you, do exactly that. There is no inherent value in wasting intellectual effort on an HN comment. The people who comment on HN are not the people who are the most qualified to speak on a topic in depth, or if they are, their efforts within HN's comment framework will be very limited, and most certainly hindered by the medium, not to mention the audience.

I am personally aware of a handful of genuine experts on HN who comment on articles in their "wheelhouse", and they've never risen to the level of their capabilities while doing so. I don't begrudge them this, it's unreasonable to think they're going to put in the level of effort in an HN comment they put into their professional work, but to suggest HN comments could ever rise to the level of what experts are capable of producing is not only naive, but also greedy, and perhaps more than a little lazy.

If you want to know more about a topic, that's your responsibility. There are a number of ways around which one could wander to learn more about what's currently known regarding a topic, and the folks who are experts and are commenting in HN don't have the time to go through the proper motions of releasing new information. Even if they had the time/inclination, they wouldn't do it here.

If you take nothing else away from my comment, consider the following: This (HN comments section) is a back channel, if anything. You don't scrutinize a back channel, you verify it independently.

You're putting HN on a pedestal. Don't do that.