Ask HN: Is there a way to filter HN comments?

HN has gotten really popular. There are many threads with 50 or even 100+ comments on them. I don't have time to read them all. Does anyone know of a Chrome plugin or something that will somehow highlight the best comments? I'm sure there are many good ones that happen to be buried in a less visible spot in the comment tree. I can imagine some tool that does some natural language processing magic to make a guess about a comment's quality.