This is an interesting perspective that i hadn't considered, and honestly i can't think of any balance. If you penalize Airbnb renters with taxes and nonsense licensing you're going to end up with less diversity where just a select few end up doing the same thing you're describing instead of the many that do it now. While if you do nothing you're going to keep pushing real residents out through price hikes. Tough situation.

However, I do think that this is very limited to areas of already high demand and shouldn't be a blanket policy across a whole region.