I'm guessing there's a few factors at play that lead to your perception: (1) HN covers a lot of areas of software development; more than any one person can rea

I'm guessing there's a few factors at play that lead to your perception: (1) HN covers a lot of areas of software development; more than any one person can really be expected to know. But each reader is ignorant regarding how big a fraction of the covered technologies are well-understood by the other readers. (2) HN stories often involve technologies related to web-development, containers, or virtualization. Those technology areas spawn inordinate numbers of tools, frameworks, etc. This exacerbates issue (1).