Posts like this remind me of the old line that "the only common factor in all your failed relationships is you".

Yes, it's possible that you'd be a great co-founder, and that you have a great idea -- but if you're looking and can't find anyone willing to sign onto your idea, stop for a moment to ask yourself if it's remotely possible that either (a) you're not very attractive as a co-founder, or (b) your fantastic idea isn't actually quite so fantastic as you thought.

Being enthusiastic is good, but sometimes realism is also good.