@Anonymous wrote:
How many people take large debt when they are given 0.0%-5.9% APR offers? Of course people will carry high rev debt in this case to pay off car loans or whatever. I think banks freak out over high UTL and if they only could see it was at 0% apr they could understand. There is a very big difference between high UTL at 0% and 25% APRs. I think rate information should be added to CRAs. 
By the way, I don't agree with the original premise that people 'will of course' do this, because:
1. Almost all credit card terms & conditions say that they can ratejack you if your credit score changes.
2. Maxing out your card, even at 0%, is sure to change your credit score.
3. Rate-jacking ensues.
4. The clever interest-rate arbitrage scheme you thought you were doing by borrowing at 0% to pay off your car loan at 5.9% goes into the toilet when you get ratejacked to 15.99%.
5. Oh, and to top it off, they can cancel the card at their whim whenever they like.
Bottom line: it's an ill-advised thing to attempt. I keep saying this over and over, but revolving credit is no substitute for long-term contracts at fixed interest rates due to all of the above....and people really really need to get that clear in their minds.
You're taking on a huge amount of risk thinking otherwise.