In Denver the law is that a person can only AirBnb a property that is their primary residence. If you have an ADU or want to rent a room you can do that full time. We rent our place when we travel..
I would agree with that, and then fine AirBnB itself whenever anyone breaks the rules. That'll get them to take it seriously as well. I definitely see nothing wrong with you renting out your house while gone on vacation. The issue I have is when people buy a house and take it off the market to rent it out to short term leasers.
It seems like a good compromise to me.