They are referring to this article on Slate - http://www.slate.com/articles/business/moneybox/2014/02/airb...

> If you’re looking for a place to stay in Marfa this evening, there are a total of five options available. In the six year history of Airbnb, only 17 properties have ever been booked in Marfa. So it’s difficult to argue that Airbnb is having any impact on the housing market in this community.

Kinda funny reading that then the original article on slate attempting to make something out of this non-story