Sounds to me like a violation of the human rights concerning privacy but after all it’s USA. Second the more they spy on the internet the more ppl will find a way to beat them. Third what are they gonna do? We are talking here about a big number of people. Also how you gonna prove such cases for sure? That it was in fact such person and not another?
I don’t think they care about which person did it, the owner of the network is responsible for what goes on on the network and since he owns it he is responsible for what others do behind his network, at least that is what I’ve gathered from these cases.
Either way they seem to just analyze the data and if illegal acts against copyrights is committed then they will take action, I believe the whole process is automated and if you believe you’ve been wrongfully targeted then it’s up to you to prove that, which is completely the reverse of how it should be you can request them to manually look at the case and determine if any rules/laws have been broken, this costs $35.