The businesses that I have seen this happen to seem to get into a cash crunch so they take orders, and charge your card right away to get the money to cover the order for customers who have been waiting on their orders for weeks or months. Is is a losing situation because they can never get caught up and they are completely trashing their reputations in the process. Everything drags out and the word gets out so they start getting fewer orders and they fall further behind. Eventually it catches up with them and they go out of business and the customers with open orders are left holding the bag.
One of these places was a very well respected vintage car part vendor. They were great for years and then the owner sold to someone else. The new buyer kept things good for quite a while and then everything started going down hill. It took several years and they eventually went under. The other is a supplier of drum parts. It is NOT Drum Factory Direct or Precision. Those guys are great. No, this one has been around for years and as late as the middle of last year, people were still complaining about getting the run around, no shipments and generally getting screwed over.
I am not stating that this is the situation at MD. I don't know, but I do know that what is going on seems very similar to the two businesses I referenced.
If anyone paid with a credit card recently, you can dispute the charge and hopefully get your money back. I don't know how long the window is so I would check with my credit card people right away. If you subscribed a year ago, you might be out of luck, but it is still worth checking.
I don't have a subscription, but if I did I would dispute charge, jump ship and wait to see how the new owners do with it. I would let some other sucker finance their operation.
Ron would definitely be spinning in his grave over this.