It's not so much the metric used, though GB transferred is pretty disconnected from actual costs, you can do some hand waiving and say it is generally related most of the time.
It is the price per gig that is typically charged that is the real crime.
I couldn't tell what the fee is to exceed the transfer caps, but either:
1) there is no way to pay to exceed the cap
2) the charge to exceed the cap will be excessive, like it is almost everywhere else on the planet
In either case, the motive is to steer consumers to other DT services or partners (read: paid peers) that are not capped.
It is the price per gig that is typically charged that is the real crime.
I couldn't tell what the fee is to exceed the transfer caps, but either:
1) there is no way to pay to exceed the cap
2) the charge to exceed the cap will be excessive, like it is almost everywhere else on the planet
In either case, the motive is to steer consumers to other DT services or partners (read: paid peers) that are not capped.
I'd love to see this unfold differently.