I don't think we've had Auction House drama before. How
I have played WoW on and off since vanilla, but I always seem to return at the tail end of an expansion. I came back this time 3 months ago and decided to start fresh- new server, new faction, new toons. I have alot to prepare for the release of MoP like this but I thought I was doing pretty well.
I joined a really great guild who has an unwritten rule that we don't undercut others on the AH, and alot of the members go as far as waiting until others have sold their items before listing the same thing. As such we're all pretty open with our gold making 'secrets' with each other.
I have a friend who, like me, has two gathering professions on his main, which are also the same as mine. He was complaining that nothing was selling well anymore this late in Cata, so I shared with him a few of the things I gather and sell, my main money maker was something I specifically told him sells a little slow but does sell, so don't get carried away putting too much on the AH at once. Very quickly I found he was flooding the AH with what I suggested to him, undercutting me by 10-20g each time and soon enough things were selling for less than half of what they were before. I pointed out to him, again, he does not need to flood and undercut so much, but he did not listen.