There are many reasons why someone would want to create a Postmates clone. The first and most obvious reason is that the business model is proven to be profitable. Postmates is valued at $1.8 billion, which means that it has made its investors a lot of money.

Another reason for creating a Postmates clone might be that the business model offers scalability, which would allow the company to grow in size and scope.

Finally, some people might have an idea for a mobile app or service that they believe will be as successful as Postmates, but they don't have the time or money to develop it themselves. So they might hire someone else to do it for them by cloning Postmates and then adding their own twist on it.