Since the beginning of the computer age kids have found ways around parental controls. I'm very skeptical that it's a good idea to punish parents for that, especially since the kids are likely more tech-savvy than the parents.
And, in many cases, "parent" singular. Putting a single mom in court, in jail, because she works 2-3 jobs and her kids are more knowledgeable than she is about computers? C'mon.
If this was true, then the "parents should parent" camp doesn't have a valid argument. Practically speaking, if parenting to this level of involvement is not possible, then why do they keep pushing for it as a solution?