Playing devil's advocate here, and I thought this was a good point from the thread last year:
I am all for preserving HN's sanctity, and I agree with and appreciate most of the points you make. But your tone makes the whole thing sound almost exclusively like "losers, please keep your rejection sob stories away from HN". I wonder how rejected applicants will take your well-meant advice.
Rejection has a human angle, and refusing to acknowledge that people respond to it in (seemingly) irrational ways doesn't help those who need encouragement, validation, or just knowledge of the fact that they are not alone. How is asking other hackers 'which web framework to use?' any 'better' than asking other YC applicants rejection related questions, given that this is effectively the only public YC forum? - anuraggoel
I agree that the examples you've got there wouldn't be very valuable. But I think that hearing about the process from a rejected applicant standpoint might be useful to people who want to apply in the future, and this might dissuade someone from posting something like that.