You did not leave a rating or review of your unfit rental on airbnb?
According to you.
Paying in to something with zero or negative ratings on a reputation-based market always carries risk; it should be priced accordingly.
So companies acting like this on global scale is not good. I would not book a place to stay for a large sum and bear a risk from possibly sketchy situation like this.
Not really. Part of getting big is not sweating small details like this when you have a constant stream of customers coming in the door and using you (to make up for the unhappy ones who never come back).
You don't say? I don't know what do airbnb users expect, honestly.
Over time they can weed out bad actors, but there is very little chance that they are going to eliminate them upfront.