I don't understand at all why this is unenforceable. If the person is publicly listing their apartment on AirBnB, it's pretty easy to find listings in your apar

I don't understand at all why this is unenforceable. If the person is publicly listing their apartment on AirBnB, it's pretty easy to find listings in your apartment building. I recall an article a year or so back about people identifying their neighbors in AirBnB ads and reporting them to their landlords.