Also, don't place too much importance on the idea, they know you'll figure it out eventually.
and btw I am a big fan of what you are doing with everyme! can't wait to see how the finished product turns out :)
I believe in people truly adding value, I know from experience (knowing YC Alums) that YC adds value and can turn a good product into a great product. I am not too proud to know that there are lots of people out there who are Faster, Stronger, Smarter and probably better looking than me however I am also aware that if I am not actively seeking out those people (I believe YC has tons of them) then I am already a step behind those who are.
So while I truly believe with the right product and vision I will succeed no matter what I find no harm in trying to better myself via a program like YC.
EDIT: What's with the downvotes? I thought HN was mostly hivemind-free, but I guess not when it comes to YC?
I founded a company and had an exit while still in college full time. I had 13 employees when I was 19, I currently work for a well funded startup with top tier investors and ship code every day. Yet even with all that said I have not managed to get to the interview round.
This time around I have something a little more special in store for my application, so we shall see how this works. For me (like many others I'm sure) the problem is not selling people on the idea, it is selling qualified people on the idea. I want to bring on someone who can truly add value to the team and I want a partner not just another body.
It's just finding a way to stand out on the application process that a solo founder has a hard time with, I think many solo founders don't realize exactly how hard that is when the YC staff reads through more than 2,000 apps each cycle now.