I’m not a difficult guest, but if I’m paying a $150 cleaning fee, I expect the floors to actually be vacuumed. The place was "fine," but there were crumbs in the kitchen drawers and hair in the shower. I left a polite, honest 3-star review on Airbnb mentioning the grime. About six hours later, just as I was settling in at home, my phone buzzed. It was an official notification from the Airbnb Resolution Center. The host, "Marc," was requesting $640.00 for "Professional Floor Restoration." He attached a photo of a nasty, charred black circle right in the middle of the bedroom floor. His message was pure vitriol: "You absolute liar. You trashed my home. You left a massive burn on the original hardwood. I have to sand the whole room now. Don't think you’re getting away with this." My heart dropped. I don’t even smoke, and I don't own a hair straightener. I knew exactly what he was doing—he was "punishing" me for the 3-star rating b...