[crispy2000]

It's a matter of risk.

With AirBnB the customer is going into the "vendor's" home. With Handy, the vendor is entering the customer's home.

While there have been incidents of bad AirBnB hosts, there has probably been a lot more cases of bad behaviour by the customers, and extensive screening before the transaction would probably be a deal-breaker.

A thief working through Handy could cause loads of problem for them, since they could get into several houses every day.