As someone who is in DC doing net neutrality advocacy on a daily basis, I love this question. One of our major challenges is that ISPs have data on their networks and we don't. That leaves us in a position to speculate about what is "really" happening and hoping that someone out there happens to have the technical skills to potentially uncover a problem. The HN community's ability to evaluate claims made by ISPs as legitimate or illegitimate based on technical constraints is incredibly valuable.