It technically always was illegal. To be honest, I think there's a huge risk in the airbnb business; hitch-hiking was not only popular but normal for students

It technically always was illegal. To be honest, I think there's a huge risk in the airbnb business; hitch-hiking was not only popular but normal for students and young people for decades in the US. Then a couple of people were raped and murdered and fear spread. It's awful, but I think there's a significant risk for this exact scenario crushing airbnb. Not that it would be common or even likely, but all it would take was once, and the people could even know eachother. The media would pick it up and sensationalize it and the business would go down.