The thing that initially attracted me to Quora (to the point of being one of their power writers in 2012) is that it's a way to publish things online that feel evergreen, without having to worry about maintaining or marketing a personal blog. My engagement with the site has declined a lot, but I still can see that people are reading the stuff I wrote several years ago, which doesn't happen with forums like this one, or with an untended blog.
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.
