FFXI used different systems then, POL allowed that sort of thing, however with internet fraud ever increasing they have been forced to change thier policies, which is why FFXI no longer uses POL for billing I would expect becuase it is not sutable for it now.
All it takes is one fake phone call from your bank (wait at a cash machine for someone to take thier card out and if you can see the logo you can get the bank.
Then you make a call with a hidden number pretending to be your bank, you give your bank details and someone can make an SE account with your card anywhere in the world.
Credit card fraud is one of the fastest growing crimes because it is actually kind of easy to do.
Infact I was watching a show about potential ways to get hussled and advice to prevent it called The Real Hussle, and someone had her bag stolen, the person that stole it said he was from her bank and gave her his phone to call the bank call center (which was an accomplace really) she gave all her bank details so they would have the ability to wipe out her bank account.
Or there is the spam emails claiming to be from a bank which people do fall for.
lets not forget keyloggers that can take your online banking details.
This is why the rules are getting stricter for everyone.
I wouldnt be banning because your country is not on the list, I would have a link to customer services for advice if your country was not on the list or a catch all "other" option
The fact is with the increasing CC fraud going on companies like SE need to ensure that a stolen CC cannot be used.
I have even seen websites that say in order to buy the first item off them your banking address and your delivery address have to be the same so you cannot steal a card, use thier banking address and the item delivered to you.
You don't seem to know how easy it is to steal CC details and how dedecated some people are to stealing CC details.
I do agree that it is lame to steal a CC to pay for a game but it is easily done.