Since it's already BEEN CONFIRMED that trading your own gold across factions, using accounts that you personally own, is perfectly ok, I would very much like to see people stop posting mis-leading information in this thread.

I'm not surprised people get confused when searching sometimes.

It is perfectly ok to use a single over-valued grey item on the auction house to transfer funds, and there's no reason at all to avoid doing so. Even if it raises a flag somewhere (and, yes, it probably should), it will be adundantly clear that it's a cross-faction, not a cross-account trade.

And that's all we're talking about here - how to transfer gold from one faction to another, where both accounts are owned by the same person.

Here's the text of the Blue Post:
Quote Originally Posted by Issuntril of Blizzard
To reiterate - cross-faction trading like this is not considered to be exploitation, and players are free to do so if they do not mind incurring the costs associated.
And another one:

There seems to be a lot of players asking this lately.

What you speak of is perfectly legal Seijin, and we already have a development solution in place to discourage this kind of cross-faction trade, in that the cut for using the neutral AHs is quite a bit more than the regular ones.

If you are happy incurring such costs while transferring your gold over, then you are of course free to do so.
That's quite clear and unambiguous to me.

edit: me inglish not gud