While I think there may yet be some sort of NLP/ML-based filtering that can improve the signal to noise ratio, the fundamental problem is that the effort is inc

While I think there may yet be some sort of NLP/ML-based filtering that can improve the signal to noise ratio, the fundamental problem is that the effort is incredibly asymmetric. It takes an author far, far longer to craft their work than it does for someone to heckle it. If people weren't driving up page-views by coming back to the same article to see if their comment was liked or replied to, I think this would be a very easy decision for most sites: at some point you are responsible for all of the content on that page.