A fair chunk of internet content is hosted in the cloud. So while comcast knows exactly what IPs you are talking to they can't tell much else. This prevents t

A fair chunk of internet content is hosted in the cloud. So while comcast knows exactly what IPs you are talking to they can't tell much else. This prevents them from tracking your habits, selling that data, and creating or marketing competition. It also makes it harder to crippling the network for some specific competitor like youtube or netflix. How else is Comcast going to hold it's users hostage so netflix has to pay extra to get the bits the customers paid to get?