Wired has a brilliant article attacking self-limiting PC programs and related items. It’s awesome and you should read it. It pretty much destroys any argument for legally restricting what computers can and cannot do, because it’s too easy to get around any safeguards you employ.
When I saw this post, I was originally going to leave a comment saying, “Hey, this sounds like something Cory Doctorow has been arguing for the past few years.” Then I clicked on the link, saw the name, and yeah, it makes sense.
Doctorow and Bruce Schneier regularly make a good point: any system which deliberately weakens security for “good” actors also deliberately weakens system for bad actors. Instead of trying to develop deliberately weak systems, we should aim for deliberately strong systems which nobody can break, in order best to protect people.