It isn't the most robust solution, agreed. We do have verified credit cards on file, full names, and the last 4 digits of hosts' social security numbers, so that should discourage theft. As far as safety goes, background checks are something we're looking into doing as well along with reviews.
There are huge issues to solve, but I think personal washing machine utilization versus laundromat wash+fold is the endpoint for mobile enabled laundry services. The marginal labor costs at laundromats for wash+fold make scaling hard. Can't wait to see where this product goes/ how it evolves!
Laundromatch