I was kind of joking. I know she said BnB, she described it in a previous thread.
A friend of mine is renting out a yurt via Air BnB. Per night fee, no services, amenities are free, no tip expected. Her son has had his house rented most all of last year via Air BnB. Same per night, nothing more expected. I'd say big difference is that you expect your host to be there for a BnB, and at least one meal per day prepped for you. Probably with Air BnB you don't expect to meet host in person, and probably not sharing a roof with them.