Why didn't you put this (or some sort of similar) information on the landing page? If I was randomly sent link to your site (ie. without context such as HN comments or relatively high score) I would have no idea what it is, and leave forever.
Also I don't like the bar saying ASKOLO on the top - there is no content on it, and it just takes precious vertical space from my small laptop screen. I already know where am I, no need to repeat that. The second bar, nagging me to signup or login is kind of distraction too.
Also, I hope for some filtering features for questions (hide unanswered, hide comments, hide answers - so I can quickly skim only through the questions - I think this could be handy when there is more content on the site).
We're interested in optimizing Q&A around thought leaders and experts. Quora works well for finding the right answer to a question - we're interested in finding out a diversity of opinions.
best luck to you!