"Please don't post on HN to ask or tell us something (e.g. to ask us questions about Y Combinator, or to ask or complain about moderation). If you want to say something to us, please send it to info@ycombinator.com."
On the other hand, this is a very public issue, and (as of writing) at least 32 people want to know his opinion. So, by community decision, I'd say that this post is appropriate.
http://ycombinator.com/newsguidelines.html
"Please don't post on HN to ask or tell us something (e.g. to ask us questions about Y Combinator, or to ask or complain about moderation). If you want to say something to us, please send it to info@ycombinator.com."