That's why I said "tends to prefer". There's no rigid policy—it's a lot of case by case, and feedback from HN users makes the biggest difference in deciding them. You may be right on this one, but it's a marginal call, and the HN comments have clarified the situation quite a bit either way.

There is indeed an industry based on blowing scientific findings out of all proportion, and we do a lot to keep most of that at bay. But the solution isn't as simple as always linking to the papers, and there's no hope of keeping HN immune from this systemic dysfunction, only of correcting its worst excesses.