how is MFC blocking legitimate viewers?
I can answer that one a bit more clearly than the other response, because it happened to me with this whole change. I started seeing those same 'suspicious activity' messages as soon as they implemented them because I use a VPN. The servers I use are almost always in the U.S., but some times rarely in Canada as well. Most every server got blocked all at once. It's possible the people doing screen recordings went through the same VPN service I use and were thus cycling through all the same server I.P. addresses, thus getting them blocked. But most likely, MFC initially paid a service to get a published list of known VPN server addresses and just started out by blocking all of them.
I use a VPN for security, have done so for many years. In fact I could probably count the times my computer has been powered on without a VPN actively running in the past 7 years on one hand. I just don't do anything without it on. My ISP, and other servers traffic is routed through, has no need to know what I do on the internet. So, this kind of annoyed me when I started getting blocked on MFC. I contacted customer support within a day of it starting. I already knew why, and I couldn't disagree with their reasoning for doing so, but I let them know they were messing up regular customers as well. They gave me the standard canned reply, "my IP address had suspicious activity." It took about ten days of continuous emails and explaining the VPN I use has pooled IP addresses, which means all the legitimate customers would be on the same addresses as those pirating video, before I finally was able to start seeing room video normally again.
They never did expressly say they would do anything, but I suspect MFC finally implemented some sort of bypass for legitimate customers. Maybe individually looking at how much has been spent, or some sort of other activity. Something they could manually check to say that person isn't actually recording shows. Once I started seeing rooms normally again I've not seen that blocked message once since.
So yeah, regular customers did/are getting caught up in it too. I suspect many will have to complain quite a bit like I did before it's fixed for them, or they'll move on to some other site like I was contemplating.