Originally Posted by
WWads
I will say though that it was Amex's fault that a reusable link was even generated in the first place. If they're worried about abuse, make all non-public links usable one-time only.
Keeping an eye out for the inevitable r/churning meltdown thread.
It is a sad state of affairs that a company has to now have some devious individual in the room to help explain all of the ways that an offer can be milked, gamed, scammed in order to try and close all of the loopholes to an offer...