Ebay has notified some sellers about a new program for international shipping that offers full protection and tracking for all international shipments. When that get's instituted, there will be a flood of new sellers offering worldwide shipping. Since most international buyers want the very lowest cost shipping which offers zero protection for the seller, sellers are wary of shipping that way. I'm not a professional card seller and I can't make up for losses through volume the way a deck dealer can. I have to be careful. I lose enough money through my card hobby as it is.
I've had potential bidders message me on Ebay to ask if I would add bidding from their country and I have done so. Plus, I certainly feel more comfortable shipping to people who are regular users of card forums rather than just some screen name on Ebay. Send me a message on Ebay next time.