How dare a private megacorp whose business model relies on eyeballs watching ads do whatever it takes to avoid driving said eyeballs away. A common pattern I've found among the HN or 'liberterian' crowd is that they correctly point out a problem then come up with the most absolute wrong 'solution'. In this example, the problem being 'maybe we shouldn't have surrendered public speaking places to a handful of adtech me…
There was an attempt to do this once. It was USENET and it's been abandoned because nobody was incentivised to improve it. We may argue about whether or not Reddit's more and more activist moderation activity is an improvement or not, but, nobody can deny that the structure of a (supposedly) for profit company was great for incentivising them to add features and maintain the site.