Originally Posted by
MSPeconomist
I think you're confused. SPG and DL had the crossover program, but since the merger one can't earn Bonvoy/Starriott points by taking DL flights.
I think you're confused, poster is talking about using Vacations by Marriott, a TA, to book hotel and flights, and earning because of that. I'm not sure how it ties into what's being discussed.