There isn't one because nobody's willing to pay for the site hosting and, more importantly, moderation costs for something like HN. Any other site (e.g. Slash

There isn't one because nobody's willing to pay for the site hosting and, more importantly, moderation costs for something like HN. Any other site (e.g. Slashdot) would be plastered with ads and optimizing for engagement; imperfect as it may be, HN is an act of charity by YCombinator to the world.