Region Locking on an International Game?

Why region lock a game where you're trying to allow for the most amount of users as possible, all around the world? If it was physical copies, region locking doesn't make sense either, because you can just refuse to ship to certain places (or simply force the buyer to pay the shipping costs like you do anyways...) So really, what's the point of region locking an mmo that EVERYONE has to pay monthly for anyways? We would most likely pay the conversion fees for currency ourselves, so Squenix, why do something retarded like this?

You're going to lose a lot of non-Japanese Asian players and Australian players due to the ridiculousness... So please, do something about the ridiculousness that is region locked, and to many makes no sense whatsoever other than limiting your market to a select few.