I am always angry about fake bookings generated by hotel booking plattforms. So I tried once how this can happen and found out that the plattforms more or less do not care. I booked rooms on different plattforms under the name Santa Claus, Easter Bunny, Jesus Christ and all of them did not care, acceptetd my booking and passed on to the hotel. The hotel now has the work to verify the booking an sort out fake ones from real ones. The booking plattforms do not care at all. It is not their work to verify the truth of a reservation.
Soryy, but the long version is only available in German