I cancelled my subscription since I received a notification that my browser is not supported. Perhaps I should have mentioned my issues with DRM as well, but this may have gone too far. One message is clear, too many messages are noise.
I agree but admit that I share some responsibility as DRM is optional and I choose to enable it for some sites. Quite often, when a site is less essential to me (or its DRM features) I decline them. The more we decline them, the more probable that there will be free alternatives of some services.