Exactly what is the difference between what this person is doing and running an unlicensed extended-stay hotel?
They're disrupting an obsolete industry.
Hotels are not obsolete, AirBnB is 'disrupting' the industry by ignoring local laws and regulations. It may be that these regulations exist to protect an obsolete business model but it also might not.
When your path is blocked by a fence before you tear it down, its a good idea to understand why it was put up in the first place.