[mytailorisrich]

No, they don't externalise anything since that's not their responsibility to start with.

There is no passing the buck to public services either. Laws varies per jurisdiction, in general it is for landlords to pay and hopefully recover costs from tenants.

The issue discussed here is not specific to AirBnb and is a well-known issue in property law.

[buboard]

Countries with socialized care tax alcohol and cigarettes because their use costs a lot to the public. Airbnb allows these kind of disputes to multiply like flies, so their line of business, which in some places is very large, will have to be taxed eventually. Whether the tax falls on landlords or airbnb remains to be seen