See, for example
And I’m not sure what the thread I was referring to was, but here’s a relevant one Air Suspended us for being 4 Stars!
Basically, you want to make the guests feel like if they give you 4 stars, your listing will go down the tubes, you won’t able to pay your mortgage, the bank will repossess, and you’ll be out there living in a cardboard box and washing your hair with rainwater. Like a latter-day Dickens novel. Don’t phrase it that way, naturally. 