Good point - the reason for that is probably that as indexing and search systems go, Quora has done an exceptionally good job in on site retrieval of informatio

Good point - the reason for that is probably that as indexing and search systems go, Quora has done an exceptionally good job in on site retrieval of information as well on SEO - their autocomplete+search feature is especially well done. HN atleast doesn't have the same visibility into the discussion threads that thrive here.