I thought this too, but someone pointed out to me that, unlike new hires at companies, customers don't care whether you're YC or not, or who you took investment

I thought this too, but someone pointed out to me that, unlike new hires at companies, customers don't care whether you're YC or not, or who you took investment from. The market is still as harsh as ever, and you'd better produce if you're going to make it. The only place I can see this as being a problem is with acuhires, where an acquiring company can potentially care whether it's a YC company or not.