C'mon Sam, you can do better than this. Just about everyone's income helps them pay their rent or mortgage regardless of where it comes from. And let's not pretend (a) parkinson's law doesn't exist or (b) people allocate specific income sources to specific expenses. If you make more, you spend more. If you have to pay your rent on the 1st, you write a check from your bank account–you don't pull cash out of your "AirBnB income" envelope.
And, BTW, I've never rented an AirBnB in SF who wasn't (a) a young professional that could afford to live there or (b) someone 40+ who clearly had lived in SF a long time and bought prior to the spike in prices. These statistics and stance just don't compute for me.
Look, I love AirBnB and I think it's a great service. But it's just that–the best short-term/vacation rental service. Nothing more. I'm a little tired of them (and their apologists) acting like they're some kind of cultural juggernaut.
I always knew they'd have huge political forces to answer to (my friends and I would often wager who was more likely to succumb to governments: Uber or AirBnB). They're going to have enforce bed taxes. They're going to have to police municipal laws, HOA regulations, and more. And after it all shakes out, maybe this isn't as profitable of a business as people thought (for both AirBnB and hosts).
Of course, like Uber, they'll likely take the lobbyist route to fight this (maybe they already have). But this is a case where a little humility would go a long way IMO. Would it be so hard for AirBnB or Sam to say "yeah, there's a housing issue and we might even be part of the cause. so let's work together to find a solution or compromise."?