"Before April 18, HughesNET customers on the Professional tier could download up to 350MB in a four hour period. They've since been restricted to 375MB over a 24 hour period, after which their connections are throttled to marginally usable status for 24 hours (this used to be 12)" - This sound akin to users on cable loaded nodes. its cheaper to cap than to beef up your network. -- You can never be too rich, too thin or have too much Bandwidth
I had Cox@Home from 1996-mid 2001 and got 2 letters during that time. But I haven't seen anyone get a letter from Cox since they took over their own service. I also have friends with Cox-OC who are over their caps every month and never hear anything from Cox.