[Scoundreller]

Given the nature of ISPs, networks and 95th percentile billing, a rational ISP would have advised you to keep it down between the hours of X and Y on days A through B.

At least one ISP around here offers unlimited data, but at reduced mbps during peak times. I can understand their plan, trying to maximize their resources without trying to break the laws of physics.

If only others would maximize their available resources. Since they aren't, it's (even more) clear that the caps are arbitrary and serve only to maintain video distribution monopolies.