1 - Private messaging that lets users learn about each other prior to booking, without revealing private information
2 - Reservation system that allows hosts to accept or decline guests, giving them complete control over who books their space
I'm sorry, but that just isn't consistent - which is, I believe, a major point EJ is trying to get across.
How can you have "complete control over who books [your] space" while not "revealing private information." It's so blatantly inconsistent that it just comes out sounding like marketing drivel.
The fundamental issue, as I see it, is that as long as private information is withheld, you not only have very limited control, it also simply isn't safe.
What are AirBnB's reasons for blocking the exchange of private information? Is it their form for DRM? Or is there really a good reason that isn't about protecting AirBnB's revenue stream?