Ok, I see what you mean and realize that I didn't really read your comment beyond the trigger phrase at the beginning.
Yes, generic top subthreads that don't really address the article, but rather get sucked straight into $predictable-thing-people-always-argue-about, are indeed one of the biggest problems on HN and I'm constantly trying to convince people not to go there.
https://hn.algolia.com/?dateRange=all&page=0&prefix=true&sor...
https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
Still, please don't "Did you even read the article"—it doesn't help. However, if you (or anyone) notice one of these generic subthreads sitting at the top of a thread, gathering mass and choking out more interesting discussion, there actually is something super helpful you can do: email hn@ycombinator.com to let us know. We downweight those, and doing that is perhaps the single best moderation thing we can do in large threads. It makes a huge difference.
Just please remember that the problem is a co-creation, and the bulk of it is caused not by the root generic comment but by the upvotes they routinely attract. It's more a tragedy-of-the-commons thing and not worth taking out on any individual user. The solution is moderation, i.e. a module whose job it is to watch over the main system and jiggle it out of its failure modes.
I plan to add software so that users can help identify and downweight these generic subthreads. Pending that, though, emails hn@ycombinator.com alerting us to these are greatly, fabulously appreciated.