It also seems like there was a large shift in (or discovery of) the willingness of individuals to participate in the way that makes sharing work. The "large sh

It also seems like there was a large shift in (or discovery of) the willingness of individuals to participate in the way that makes sharing work. The "large shift" was when people started getting paid. People will do anything to get paid, including inconveniencing themselves by illegally renting out rooms in their apartments.