I love the X, Y etc explanations.
Perhaps there are cases where gold can be transferred? Say, after the server is over? Now everyone knows who has how much, the money guys are squared away and it is my gold to use as I please.
Even if someone bought it for me, it is mine since we didn't spend it and the dual knows that. And how often are we going to find duals who are going not going to spend the gold we buy, take it, and give it away willy nilly?
Why not let me transfer it to an account where I am a dual, but not primary?