In all fairness, the owners of these points are not involved with this at all - as far as they know their points are rented - even if David's does process a refund for me that is ONLY if another renter is found - if no renter is found, I'm 100% out of luck and the owner keeps their money. That's what I would expect, as I knew it was nonrefundable. The owner has to do nothing, as far as I understand, other than call and change the name of David's finds a new renter. So the owner here is out nothing and has no risk (as it should be).
I've both rented my own points through David and rented points through him. The reason I rented through David - and didn't pocket an extra $3 a point, was so I didn't have to deal with this sort of thing. Your "no bother" is the whole reason I went with a guy who said "once you make the reservation, its done - except for adding Magical Express you won't need to touch the reservation again." I have a life, and no room in that life for "dealing with a stranger's change in vacation plans once my end of the deal is done." Your contempt for my time is offensive.