From a purely game mechanics point of view, I should love Battlefield Barrens. One of my favorite things to do in Vanilla WoW was head out to the plaguelands and mindlessly grind scourgestones while I read guild chat or watched TV. Sometimes, you don't really want the dedicated direction of dailies or quests, you just wanted to get some progress done on your terms, when you feel like it. Battlefield Barrens, with the ability to grind resources to use for a single weekly quest or for currency for some decent gear and vanity items, would seem to be perfect for that.
But I can't go back to the Barrens, because I'm Alliance. When I go to the Barrens, I've heard from outside sources and little story snippets that I'm supposedly infiltrating the Horde to sew chaos and dissension. Despite that, the actual quest dialogue and gameplay tells a different story. From the moment I hit Durotar, I have to put up with trolls taunting me about the loss of Theramore and trolls threatening to kill me. Even Vol'jin makes me "earn his trust," and threatens to feed me to Sylvanas if I question him. To top it all off, it's not clear that I'm getting anything in return but the vague hope that Vol'jin's Trolls might kill an extra orc or two before the Alliance starts their main offensive.