This is the answer to How does Yoomoot compare with Quora?

Quora has a whole lot more publicity, and therefore a whole lot more users, which makes a big difference

Quora is less innovative than Yoomoot and yet it has received a lot more buzz. That's because it was founded by ex-Facebook employees and got big money in funding.
With more publicity they get more funding which means a more effective Q&A community.