I'm not sure I understand the question but HN discusses what it wants and this post happened to show up and get upvoted. Considering that the author went through YC a year ago I'm not sure that the timing matters much.
All I am saying is that YC terms should be a place for clarification outside of HN - and if Q's show up on HN, they should be answered and addressed in a YC FAQ/forum-specific/whatever...
Why the F are we having this conversation on HN and it not a seminal discussion happening with, at and of YC?
Why do we need "trench knowledge" as opposed to YC actually holding an open forum on such?