Hm... valid concern. Just to clarify, are you talking about LFG or console posts in general?
Will bring this up with other mods, as I've moved a few console posts recently and felt that although it's not that many, there just doesn't seem to be a right place (I just moved them to misc IIRC). However, looking at said forum, it also shows how few posts there are... and wonder if it wouldn't be better to have a [console] tag for threads in NA/EU LFG forums. Simply because of timezone reasons...
Personally as a ps4 player I try not to think about it when posting as, unlike blizzard.net who dont let us console players post in main forums, we're all really talking about the same thing. But I never thought about the trade aspect, I guess it could be tough to find among all the PC players.
I think a tag would be a better idea because a a whole new section would isolate us from the rest of the d3 community