I think you are completely missing the point. The favour does not necessarily need to be returned by the same people. It's about tolerance accepted as general s

I think you are completely missing the point. The favour does not necessarily need to be returned by the same people. It's about tolerance accepted as general social value. Lets say that tolerance is some kind of a deal with society - lets all try to be tolerant and we will all benefit - we all have to do our part and if we do we build something together and we are more likely that others will tolerate our annoying habits (or sexual orientation or religion or whatever). Also you could say that this specific ' AirBnB tolerance deal' could be more like please tolerate my guests because I need their money right now and I will tolerate your [something annoying that you certainly do].