Yeah I don't buy OP's "local norms" argument but as someone who lived in the same building as an AirBnB it's inarguable to me that it affects the standard of living for others in the building.

The hallways got scuffed up, some guests were excessively noisy, dropped trash all over the place, broke stuff... as a permanent resident if you do that you face consequences. As someone only resident for a weekend it makes no difference to you.