I agree with much of what you say on this topic and others -- in theory.
But you are off base here.
You make broad sweeping statements about computer usage and the courts and torts that just have no basis in reality.
The owner of the system is NOT always responsible, and in fact is rarely responsible in reality in the case of "pwned" machines. All the computers that are controlled by others (zombie computers) and used for attacks --- can you show me one case where an individual owner was held responsible? You can search and search... but I'll save you the time. You won't find it.
Even your child porn example is incorrect. There has already been at least one instance where it was shown that one person placed child porn on another person's computer. And yes, the computer owner was not held responsible.
And you speak of torts in a cyber world as if everybody worldwide is within the legal jurisdiction of one system. Of course that is not the case. All great theory. Just not reality.
