Here's my conspiracy theory:
It's all a trap. They are not really stopping credit card loads, they just leaked a false memo to get everybody to go load their cards one more time today so that tomorrow they can look at the records and easily see the bulk of who the MS people are! Then in one swoop close all of those accounts.
...I'm really just joking as I know they have plenty of tools and data to weed out MS'ers anytime they want..but wouldn't that be a crazy little trick if it was true!