I'm T-Mobile user and on every their survey I let them know that I oppose their violation of Net neutrality and they should stop Binge On. Also you can tell them that since they are allowing caps exemptions, it means that caps have nothing to do with network congestion and they should stop using them altogether.

> Thing is, they're not wrong, per se. Because there isn't an actual accepted definition for "net neutrality".

It is wrong, and definition is pretty straightforward. Net neutrality means no preferential treatment for any traffic. Here some services get exemption from caps, while other don't. It is clearly a preferential treatment for some traffic. From a different standpoint, Net neutrality means that network provider can't serve as a gatekeeper and decide who gets better traffic and who doesn't. Here they are the gatekeeper and services need to ask them for permission to be exempt from caps. Gatekeeper = violation of Net neutrality.