But, here's your biggest challenge: This concept doesn't work without a bunch of users showing up at the same time.
Tomorrow, when this is off the front page of HN, how do you plan to get people to come back? If you can solve that, you've got something.
I also have some ideas for integrating game-like features which would introduce viral elements to the site.
I would love to hear more ideas for getting traffic!
But, here's your biggest challenge: This concept doesn't work without a bunch of users showing up at the same time.
Tomorrow, when this is off the front page of HN, how do you plan to get people to come back? If you can solve that, you've got something.