Yes. "Some active users" needs to be millions (unless you are b2b)
We have access to 400k candidates, a real product, and real clients (Pizza Hut, 7-Eleven, just to name some) and we got rejected.
Edit: and I'm OK with it, we just need to work harder. We do not depend of YC to be successful, but I see all the advantages of being part of the YC club.