Since its inception, Airbnb – the website that allows people to rent out their homes for holiday accommodation – has been a contentious issue in cities. It’s a cost-saving convenience for travellers and a money-making opportunity for homeowners, yet a source of ire to scores of traditional hotels and guest-houses. Some have accused the global home-sharing initiative – which operates in 34,000 cities – of playing a part in gentrifying neighbourhoods, as more Airbnb listed…