Why doesn't AirB&B work to reduce prices? Once it becomes less profitable for people to sublet their places for the sake of making it money, maybe people will s

Why doesn't AirB&B work to reduce prices? Once it becomes less profitable for people to sublet their places for the sake of making it money, maybe people will see it as less of an evil. There are far too many hacker hotels in SF on AirB&B charging ridiculous rates, jamming up to 20 people into a single condo stacked with bunk beds.