I believe the answer to the question "what can AirBnb do?" is really only somewhere deep within the subconsciousness of the victim, and can't be found in a book, nor on an internet forum. Just move your butt and go ask her in person what she needs. Chances are, the first things the victim needs is in the likes of a roof and some emotional council - a cup of coffee, a discussion, a phone number and maybe a few hundred bucks for immediate expenses can help pave the way for the next steps, which are damage assessment and recovery.

It's cheap, considerate and probably much more effective than a simple "sorry" press release. And it has nothing, nothing to do with legal responsibility/liability at this point. When someone is distressed enough to ask specifically for my help, it's the kind of things I'd eagerly do, whether it's my fault or not.