An AirBNB unit was rented out in our building, and was a semi-regular source of noise and trouble. So, we took the listing to the landlord and they shut it down: it's illegal here now, and it's specifically forbidden in the lease.

The more popular AirBNB gets, the more likely it seems that this sort of reaction will become the defacto one in popular areas.

This is already the case with large developments like Stuytown in NYC: http://www.betabeat.com/2011/05/31/airbnb-takes-manhattan-wi...