[Timothee]

I can understand this idea when it's an unlimited plan: if you tether, you're likely to use a lot more bandwidth than with just your phone. So, if you tether, you'll impact the infrastructure.

But since they're limiting your bandwidth already, I'm not so sure why it matters if you use it from a laptop or from your phone.

In the end, I know why they're doing it: because they can, and because they want to limit the number of people who do it. It just bothers me because it doesn't make sense technically.