I'm a very curious person and have been all my life. Part of what makes me unique is my ability to go to great, if not seemingly impossible, lengths to find out things that pique my interest. And, YC, finally seemed like a place where I could belong after feeling so very different all my life.
It is painful to see them return your application with a generic 'no' because I have no way of knowing what I could improve or what is it that made them look away in the first place. I'm pissed off because I care.
To quote from Don Quixote, "there were no embraces, because where there is great love, there is often little display of it."
I hope they could give me some feedback. For once in my life, I'd know, for a fact, than having to ruminate and speculate over it.