And as far as using email; who would read an email from their ISP? or who checks their ISP email? Especially if its full of AT$T Yahoo!, Rogers Yahoo! or Verizon Yahoo! ads trying to sell you something you already have. Plus yahoo itself doesnt provide that that great of an email service let alone us an ISPs.
One of the big problems is that the bandwidth warning is out of date by the time you receive it! It can be at least 8, but more likely 24 hours or more behind. Moreover, Rogers bandwidth measurements are often so wrong it's laughable. Like the guy who was away on vacation for an entire month and consumed over 80GB.
But the bottom line issue is that this is the thin end of the wedge. ISPs want to make more money and they'll try every way they can ... they wanted to charge the sender ... they wanted us to get to the internet through an ad infested portal ... and next it will be injected ads.