Thanks for the very detailed response. My comments - and some are "devils advocate": - Agreed that a Saas offering has lots of cost/admin benefits. But - it ma

Thanks for the very detailed response. My comments - and some are "devils advocate": - Agreed that a Saas offering has lots of cost/admin benefits. But - it makes it difficult to integrate with a sites existing signed-up member-base or social network. - What are examples of feature bloat? What are the key/core features? - What would be the equivalent of a room on Stackoverflow? I think that SO is really just one room, with a lot of questions in that one room (ignoring tags)? - Invite mechanism - yes. - FB/Google login/interface - yes. - Email notifications - yes GetSatisfaction - can't comment. I thought this was more about feedback wrt to a website or business, as opposed to a fully fledged discussion thread, hosted say on a national newspaper (an ultimate customer here) I've never used Quora (fb only sign-up). What's the key differences between Quara and a forum or Stackoverflow?