I can understand how people found this discussion insulting, especially when it got blown out of proportion. It wasn't tianaco's intention.
I saw the application she submitted which she is leading. She focuses on differentiating herself from typical entrepreneurs, and a lot of that has to do with her unique experiences. She was confident this would play well with the YC team. She was fearful that it would work against her with YC alum. That's why she started this thread.
tianaco is a vocal person who says what she thinks. In some circumstances, this has hurt her. More often than not, it has opened the door to opportunities that don't exist for other people. Regardless, she has made a conscious choice to live her life speaking up. Whether this thread helped her or hurt her is unknown.