@Alastair0 , @Sarah977 , @Helen3 , @Emilia42 , @Helen427
Currently, this is no longer an incoming issue for Australian hosts. As of 1st February, our federal government has put a blanket no arrival entry visa from anyone from mainland China, unless they are an Australian citizen, the dependants of an Australian citizen or the spouse and dependants.
Those who who fall into this category will still have to undertake 14 day self-quarantine.
So without knowing the fine print (it’s a Sunday and I’m not reading it today) I think the percentage of guests that would fall into this group, seeking a 14 day stay in an AIrbnb would be very rare. I would be surprised if the entry into the country would even be allowed unless the residence for the fourteen days was adequately equipped. Hence house rules.
Tighten your guest questioning and house rules, and all should be fine.