To all you guys & girls that got 'rejected', don't be down, be UP. This is your chance to prove the spotters at YC wrong. Do it anyway, by any means that you can think of and make them regret not selecting you.

Even if only stellar ideas were presented with great teams behind them then YC would still be able to select only a limited amount of those. Chances are that you'll make it and those chances are not that much different from the projects that did get selected.

And you have at least one extra motivation, to make whoever made that selection at YC think, oops... we should have picked that one.

Being selected by YC is not a guarantee of success and not being selected by YC is not a guarantee of failure!

Best of luck to all of you, both those selected and those not selected.