It's a truly end-of-capitalism† move to shift the risk burden of property ownership from the center to the periphery. I guess McDonalds does this too with its franchises, but this is so much more pure: you own the property, you figure out all the property management work, and AirBnB takes the cut. McDonalds at least sends its franchises frozen hamburgers. AirBnB is just pure toll-bridge-as-a-service.

† Not sure if capitalism will actually end any time soon, but stuff like this is what makes radicals try their best to end it.