> All apps rely on repeat business, yet here repeat business depends on failed relationships. By that logic, car mechanics don't make sense either - they repai

> All apps rely on repeat business, yet here repeat business depends on failed relationships. By that logic, car mechanics don't make sense either - they repair your car, yet they rely on recurring faults to make money. And let's not get started on doctors. These misaligned incentives exist, of course, but successful matching also serves as advertisement and there are enough people to sustain a business with one-time customers.