i'm an engineer working on promoted posts (same guys as https://www.facebook.com/georgehtakei/posts/475040805858711)

I offered up a response here: http://philztheengineernotthecoffee.tumblr.com/post/33650957...

searchgss and mschaecher pretty much nailed it in their comments: http://news.ycombinator.com/item?id=4650787 http://news.ycombinator.com/item?id=4649243