Is there anything stopping the renter from taking extra precautions? Like for example photocopy the tenants passport? I am finding it hard to believe that some

Is there anything stopping the renter from taking extra precautions? Like for example photocopy the tenants passport? I am finding it hard to believe that somebody would drop off the keys to his own apartment to a total stranger, regardless of any guarantees the site does, without even wanting to briefly meet them.