That wasn't my experience with YC. We were rejected after an onsite meeting and got a personal email from a partner with clear reasons about their concerns. If

That wasn't my experience with YC. We were rejected after an onsite meeting and got a personal email from a partner with clear reasons about their concerns. If you're referring to the pre-onsite stage though, it's not too surprising since they have a huge number of applicants to filter through. The resources needed to give everyone an individual, delicately worded response would be enormous.