“Google’s thesis says “primary sources generate high-quality, reliable information at scale.” In normal social environments, primary sources are a synonym for trust or reputation; but since social media systems don’t mimic these trusted environments, the utility of reputation breaks. The inequality of influence - and noise from an unknown crowd - further impedes deliberation; so we can understand why they do not produce (nor sort for) high-quality, reliable information at scale.”

https://alexpacheco.substack.com/p/solving-the-signal-to-noise-ratio-problem