Not to belabor the meta discussion, but your comment sparked a question. If it is how you say, and using a politico-economic lens, I wonder if there has been any discernible shift in commenter attitudes as the demographics have changed. Specifically, if the shift was from entrepreneurs -> skilled wage workers, as you’ve asserted.
The interests of the petit bourgeoisie (entrepreneurs, et al), the professional management class and that of skilled workers sometimes overlap. I think those overlaps would probably translate to some overarching strains of belief, for example, the tendency toward libertarian viewpoints on HN.
Sorry for the tangent, just had to get that out of my head!