A big problem I have with every law like this is how inherently inconstant and big business favored its enforcement is.

Say for example that you are a content developer and finds that illegal copies are sold on ebay. You ask them to take down one seller only to find new ones every day, and thus you go to the police and ask them to block ebay.

I doubt the person will ever get a day in court. There could be thousands of illegal copies listed each day and yet the political nature of blocking laws means that enforcement is depended on who does the accusation and whom the accused is.