They help connect thieves with their victims. They also get a small cut from the thieves for this service.
Worse than a waste - their wording gives a false sense of security where none should exist.
Second, they have automated emails for dealing with "voluntary parting" furthermore suggesting this is not an isolated occurrence.
I'm just saying - if I'd want to make off with tons of equipment, one novel idea for me would be to set up a legitimate private marketplace, fake renter info, send an acolyte to pick up the equipment, and then deny all responsibility. But never subscribe to malice what is explainable through incompetence and so on.
But if they fail to do better identity verification, they're worthless. How hard would it be to mail a postcard to the address?