I know that prevention is better than cure, but it'd really help their security if they changed things so that once your account has been hacked and your computers de-authorised in favour of the hackers, you could either:
1. De-authorise their computers without waiting 12 months (yes, you do really have to wait that long)
2. Find some 'suspend this account' button to put a temporary halt on things while you got it sorted out
3. Find an email address or phone number to report the problem (if Amazon can, why can't Apple?).
4. Have a way to delete the account entirely as a last resort
Yes, it did happen to me, and my password was not as easy to guess as Joe Average's might be.
I changed the credit card and changed the account password to some random garbage and deleted iTunes from all my computers. I don't really miss it, but if they fix points 1-4 I might risk it again.