The problem is that in most case it doesn't. Like in the example from this post, where users can no longer run fully open browser. Or when you buy a game and ar

The problem is that in most case it doesn't. Like in the example from this post, where users can no longer run fully open browser. Or when you buy a game and are unable to play it because your internet link is down. I have never seen a DRM system that wouldn't impede honest usage in some way.