Player Trading: Work Orders + COD
I believe the BLTP was intended to be the main trading method. It is awesome both because it is game wide (all NA or all Europe) servers included, but also because its a good gold sink.
Right now BLTP serves both the duties of work orders and CoD. If you want an item and have crafting materials you can easily buy the item and sell materials. Selling something on the BLTP is exactly CoD, when the item is sold (delivered) you get money.
No thanks to CoD. CoD = a billion messages an hour of WTB/WTS spam in all maps.
I made a similar suggestion, but it was to add a section for request for services. The intent was if you wanted to do a dungeon, join a guild, help w/ a mission etc you could put up a transaction. Without a feedback system, they would have to keep the transactions at 0 cost.
Also, a black market trading zone would be cool. Direct transactions between players would be allowed. E.G. there would be a mechanic where both players saw what the other was offering and they both have the option to agree on it. Also, there wouldn’t be the draconianchat filter there normally is in /map chat. Even throw in some dark alleys and trash to make the place look seedy.