Originally Posted by
Kacee
I think donating upgrade instruments, while reflecting laudable intentions, is inconsistent with the airlines' view of what these instruments represent.
They are perks for the personal use of the customers who earned them (or immediate friends family). Not some independent currency to be transferred to strangers, either for profit or charity.
While agreeing on the likely reason, there is a process for donating miles which the airlines view in a similiar manner. Although RPUs/GPUs would be a more complicated process with the expiration issue, restricted geographic usage and the need for an underlying paid ticket.