HN's algorithm is in fact kosher, because it's not personalized. On HN, arguing with people on topic X will not make you get shown even more articles on topic X to keep you engaged. Reddit-like platforms are similarly okay (you personalize your experience by subscribing) and short video platforms like Tiktok are the great evil.
Reddit “best” sorting is pretty much like instagram and TikTok now, have to make sure it on hot/top, otherwise it’ll show you “related” things from subreddits you never subscribed to.