Earlier quoted context omitted.
Why isn't there a greater emphasis on filtering controlled by readers ? "Don't show me anything said by someone who joined after I did". "Show only pairs with historical ratings above this threshold from raters in the weighted set generated by crawling thusly from this seed set." "Prioritize anything on topic X which multiple people from this set like." At 8am: "Don't show me anything this classifier thinks is a pun"…
I wonder how the defaults would be chosen on such a platform - especially for visitors that have no profile.
Then there's a customization problem. "Following this blog post, I installed the hn-isnt-reddit style, added the extended-debate-is-wonderful plugin policy, and configured them to ... ".