quora has about 650k questions in total, most of which are unanswered and in general ignored. my estimate of answered questions puts it at 80-90k.<p>as for user-base, the churn rate is huge with the majority of users following 2-3 topics before leaving the site forever. there is subset of users who generate all the content and value of the site.<p>lets look at some numbers:<p>Yishan Wong: Answers 1457, Question 760
Jeff Hammerbacher: Questions 1092, Answers 1041
Jan Mixon: Questions 802, Answers 4101
Michael Wolfe: Questions 9, Answers 1088
Mark-Hughes-1: Answers 1294, Questions 48<p>power-laws ahoy.<p>it's good source of info on startups and the tech scene, which makes it more like a popular discussion forum
than a social network. I don't see this growing to millions
of active users unless it tries to take on Yahoo! Answers.<p>i believe the quora team acknowledges this, and with the introduction of boards they're trying to redefine the site to be some kind of textual pinterest.<p>this sounded quite pessimistic, it's actually the site i visit the most and i hope they continue to grow without
comprising on the quality.