No, not as long as they charged everyone equally for the same service during the congested times without regard for how the bits were being used. The point of

No, not as long as they charged everyone equally for the same service during the congested times without regard for how the bits were being used. The point of net neutrality is that ISPs should ignore the content, source, and destination of the packets they carry when it comes to prioritization and pricing. QoS is fine as long as it's under the subscriber's control (for example, via DSCP tags), but it can be an issue if it leads to the ISP one subscriber's traffic over another's based on the services being accessed. Tiered services (paying for higher bandwidth, lower latency, etc.) are also fine so long as the tiers assigned to each class of traffic are chosen by the subscriber and not tied to specific protocols or peers. Consider the USPS as a model of neutrality: they offer various grades of service from bulk package deliveries to Priority Mail but everyone paying for the same service gets (more or less) equal treatment.