I've been following this threat for a while now, and I've watched in horror as the hammer came crashing down on so many of us.
What is peculiar, though, is that I haven't been shut down at all. My wife was, but I wasn't.
I have 3 MVD. I used to load $2500 at a time on one or two of them when I was buying 10 VRs daily. I would wait until I had > $3000 on a card and then CA it at one of two banks or my CU. Each card was probably CAed every week at my peak and every 3-4 weeks otherwise. Largest CA has been $5000.00. No cards have been put in spend down. I'm still going strong. I don't know what my secret is. The only thing I do occasionally is throw them an ATM fee. Once in a while I'll pull out $400, generally at a casino lol.
So, I'm at a cross-roads. I need MVD as a tool for my 50-80k/month spend, but I'm also interested in trying a different strategy with each of my three cards to see if we can determine different "factors" that actively contribute to their decisions.
Also, I've had these cards since around June/July 2013 ... so I'm relatively new, but these aren't one month cards. Also, I used them VERY lightly my first month because I had no need for them.