When AOL executive Ryan Block went public with a recorded a customer service call in which a Comcast representative refused, for the better part of 20 minutes, to cancel Block’s service, the recording went viral not because it was an anomaly, but because the rep’s sales tactics were familiar: most of us have been at the receiving end of a Comcast sales call we didn’t ask for. Comcast provides a portal to this awesome, sprawling thing we all access constantly.