I see both of your points, and agree with both as well. I assume that each instance would be on a case by case basis (in terms of letting ignorance be okay (I mean come on, letting your cousin download illegal files from your computer??), and thus thank the courts for being the ones to do that

On a side note, I still point to my first post. If you do not download things you do not own to begin with, there isn't any question in any courts mind.