It certainly came as a shock when I received a letter in the mail from Capital One. An increase from 11% to 29% APR is no small amount. I always pay off my balance in full each month, but this increase will still hurt many in the long run.
Capital One was very explicit about opting out too. They said if you want to opt-out just call customer service and cancel your account.
I'd like to cancel my account, but is it better for your credit score to have longer credit history?
I like Capital One less and less every day for a few reasons. One reason is the really high APR. Another reason, which doesn't happen to me very often, is that if you hit your credit limit they slap your account with a $40 overage fee instead of simply declining the charge.
It's all just a money making scheme. Large companies making money off of other people's inability to manage their own money.