Digital Restrictions Management or DRM is any software functionality that is designed to prevent you from using the files on your computer the way you want to use those files. This is obviously a malicious feature. And is defective by design.
This comment thread is for people to document various implementations of this malicious feature.
When it comes to the utter war between Libertarians and Conservatives, the so called, Right and Left sides of the political spectrum, a lot of people avoid the fighting by simply choosing the center. I, on the other hand joke sometimes that the best option is to choose the square root of -1.