I think this part probably didn't happen in real word before ...or did it? (hoping it didn't)
There is no incentive for McDonalds to stop producing these burgers, so no risk of rug pulling.
Collateralizing the loan with McDonald's gift certificates would just be a bet that McDonald's will sell 10b$ more food, minus some delta to incentivize people to use the lender's clown bucks instead of greenbacks.
https://en.wikipedia.org/wiki/Canadian_Tire_money
Used to be able to use that at the local video rental place.
That's the problem.
https://www.marketwatch.com/story/airlines-are-using-frequen...
Or am I misunderstanding your comment?