Interestingly, TPG posted an article yesterday about the recent Amex clawbacks (previously referenced by
@gottalovepluto) and warned,
This is not the first time we’ve seen the RAT team cracking down on people who try and skirt the rules to earn extra points.
...
When it comes to American Express, it’s worth playing by the rules. Even if it looks like you’ve gotten away with some trick to earn bonus points, just remember that Amex can (and likely will) come after you and try and claw those points back, even if it’s months later.
TPG is basically indoctrinating his readers to be wary of even attempting to get better offers by using “tricks,” which could be taken to mean incognito mode and supportals. In TPG and the RAT we trust!