Ask HN: Preferred word to describe “Unnecessarily complainsome grumpy person”?

I started reading HN fairly recently, the posters here struck me as having a different distribution of recurring (non-technical) vocabulary that is quite different from other platforms. I think that besides the obvious age distribution factor, the spectrum of social scenarios more frequently encountered by the HN demographic probably also contributes to certain common situations or stereotypes promoting/stimulating the use […]