> I lived a few doors down to someone who basically ran an ad hoc AirBnB ... before Airbnb. It was pretty terrible. Parties all the time, trash, they parked anywhere (in other people's driveways...)

I lived, several times, a few doors down to someone who did all this and didn't run an Airbnb. They're just shitty people, and they're going to be shitty neighbors regardless of Airbnb.