This kind of service could also apply to an Airbnb copy, but also to many other institutions - like education. In all actuality, education is largely untapped by the blockchain or crypto (as far as I know), and it badly needs the adaptation to the said technologies distrupting many other such industries.

For instance, a team or a collaboration of people should start working on a blockchain-based online academy - that would mine the grades of those studying under the domain of the said academy.