Possible market board exploit

[Valkyrie_Lenneth]

Then why even have something in place to "prevent" players to sell on other servers if all you need to do and just have another service account and trade amongst accounts? Also i thought retainers are tied to your character (i.e. i create another character on the same server and hire a retainer, its an entirely new retainer)

Yes, but retainers are not cross world. They are tied to your characters home world.