I agree with you on Quora.. they may have shot themselves on the foot there.. By introducing a barrier to post a question, they've just eliminated a huge % of u

I agree with you on Quora.. they may have shot themselves on the foot there.. By introducing a barrier to post a question, they've just eliminated a huge % of user generated content. Now you're relying on your existing users to keep posting and answering questions, and inevitably it will keep decreasing.