I am not sure this idea has been brought up or talked about much. If not then there might be a workable solution to a few trading issues that many players have brought up before. Namely, there is no Trade Channel within the game that a good number of players desire.
What I propose is adding a Trade Channel using something that is already in the game. The AH. Now, what I mean by that is add more options within the AH when a person lists items to include more that just a time listing for an item or the asking price/buyout price. For this to work, the lister's name would be added to item by default.
The options would include but not limited to the following:
1) A check box to list item as a "For Trade", No sale price being asked, contact seller.
2) A check box to list an item "As is". Meaning, do not bother the lister of the item. It is strictly listed as a sale on the AH, only. No deals.
3) A check box to list an item "For Sale or Trade" You may contact the seller if needed.
4) A check box to list an item with a "More Info" icon next to the item when listed. Meaning, when used that item will have next to it for all to see a small little icon (!) that the lister has more info included with it. Such as, the items they wish to trade for the item. The best ways to contact lister, who to directly contact, etc. This icon would be small but easily seen so not be in the way. Either have potential buyer hover curser over icon to bring up a small temp drop down screen with the info and/or make that icon clickable to bring up a full screen off to the side so you can look at it better, if you so wish.
What these or other options would do is decrease the number of Trade LFM's up all the time, allow players to sell OR trade an item in a more reasonable way, make use of the AH for trades instead of the Dev's creating something just for trade, allow those who wish to avoid the excessive AH fees since an item listed as a trade can not be charged for selling on the AH, allow the Dev's to modify something in game rather than waste more time or resources trying to create something from scratch, use it to maybe direct others to the Trade Forums for those who enjoy trading as a form of "fun" for them with the Info Icon button. So basically I see this as a Win-Win situation for the Dev's and us players.
Although there is nothing wrong with more options, those are just but a few of the ideas for options that can be added to the AH. I am sure there are many players(and Dev's) who will like this idea and hopefully those people can toss out more ideas or improve upon the ideas listed above. Thanks for reading this.