I didn't know this was a thing until my friend said he stayed in a guest room of a small country's embassy in SF that the host probably never had permission to rent out.
Had this very experience happen to me a few years back. Took a cab to the advertised address. Door locked. So I call the host and the host gives us a different address.
Catch a taxi to the other address and report it to Airbnb along with a request for cab refund (Airbnb just ignored the request). Host just started listing in a different address afterwards.