Why not have an immediate, interactive, browsable demo on home page rather than a video demo? Or why require sign up to view at all?

It seems like a useful approach. But there's so little content so far that it's hard to tell. Could you perhaps say more about how this improves on Quora etc? Also, how will you handle moderation and verification?

Edit: I see that, as with Quora, users retain copyright to all of their content, and grant perpetual license to the site. Presumably, then, Quora users could migrate their answers to Quetree. But I'm not sure how corresponding questions could be handled.

Thank you very much mirimir for your profound comment. There are some differences with Quora - more emphasis on knowledge rather than celebrities to follow, less noise, discover new questions with new knowledge gain... There is a points system with medals and trophies for moderation and verification (also followup questions :) (Had the idea before Quora back in 2008). Please keep in touch through the contact-us page! You're awesome!