said by pnh102:Because moron would complain that their service or phone is "broken". Then gat all mad when it's explained that they went over. Having a hard cap with high overages gets one's attention. If I know there isn't an overage just throttling I might not give a shit about going over. Remember even at 150 kbps I could still theoretically us 35 GB a month. Not to mention I'm sure there would be some technical issues with trying to do that. Also what happens when VoLTE comes out? You can't cut of data and still over voice.
If this is true, then why don't providers like Verizon and AT&T simply shut off or severely throttle the service when the user hits the cap?