Umm. That slideshare post has one upvote. And that is from your submission. It didn't have significant traction and then get buried... it just didn't move once you posted it.

I posted something yesterday not exactly critiquing YC, but presenting an alternate idea to how they should run housing for batches... that post didn't get buried because it had a different viewpoint. PG even commented in it.

Also... any reason to link "Hacker News" 12 times in your post to your old thread? IMHO it makes it looks a bit SEO spammy.