HN's threading and voting for comments make it a much better place for discussion than Quora. Conversely Quora's answer summaries, categories, and social media

HN's threading and voting for comments make it a much better place for discussion than Quora. Conversely Quora's answer summaries, categories, and social media integration make it better for pure Q&A. Agreed that it'd be great for something that's integrated with both. I believe Quora has API access and if so there are some interesting weekend projects.