What's your startup and where are you based?

Did you apply with the same idea all 10 times?

Looking for a random co founder on HN is a terrible idea. YC prefers co founders who know each other well.

FYI how many times you apply is irrelevant if you don't learn anything from the rejections and make no progress in subsequent applications.

And wtf in a CPO?

If you are looking for a CTO, does that make you the idea guy? That might explain the rejections. It looks like you applied 10 times with just an idea.