I disagree. BT informed their customers BEFORE it happened, a few months in advance. THey were told in November, of changes that would take place in the first quarter of 2005.
And we can only judge ntl by it's history, it didn't tell customers of the AUP change,
The idea that people could stay as they are, is flawed. If I was a heavy user, and was downloading as much as i possibly could, of course i'd stay on the old contract, getting 1.5mb with only a guide of how much i should download. So, if ntl are indeed trying to get rid of / slowdown heavy users, then this wouldn't help at all. Although, saying that, ntl aren't renowned for doing things 'right'.