(Almost certainly, I am not applying but thought this would help those who are).
There is sometimes a perception that YC is perhaps exploiting founders. This is because it is founded on the VC model. This can be removed if it is more like a "temporary job to work at your own startup".
More like IBM or Microsoft provide elite employees, the freedom to work at their own R&D projects aka skunkworks - but in this case, making them into successful businesses.
suggestion: YC should provide its founders with W2 benefits for one year. Healthcare, Life insurance, etc.