Originally Posted by
12HRS
Find me a single data point of it not working purely for MS reasons. There is always an issue of using a non targeted link or something else mixed in.
I am not saying you should put all of your spending through MS, but I wouldn't worry about throwing some in there if everything else is legit.
There are data buried in the long running locked thread, you can go find it yourself.
Particularly interesting is a case originally posted on reddit - the guy got all his previous bonuses on various AMEX in house cards invoked, except one which was the one he did not MS to earn bonus, the rest were all involved some degree of MS.
You certainly can comb thru the thread in AMEX forum to find yourself the data. Nobody needs to prove this to you.