I want to know how that discussion already fell off the front page? did it get flagged off the front page? It has a lot of discussion and a decent number of upvotes.

HN detects flame wars and devalues those posts in an attempt to facilitate better discussion.

Source: http://techcrunch.com/2013/05/18/the-evolution-of-hacker-new...

The stupid thing about that is that, because AirBnB is a YC company, all my conspiracy theory bells went off immediately. I hadn't thought about the flame war detection thing at all.