Agreed, Xandria - I just don't get why FFG isn't making better use of their community when it would be done for free, it would help improve their product, and it would invite more enthusiasm for the game.
As for some of the issues above, why was CB unbalanced? Here was our scenario: it was late in the game, early in the Gold phase, and because all my four cities were seiged my Lieutenants were chasing the heroes. We got to a point where two Lts were AT Tamalir, waiting for the heroes, with the other two able to get there in a turn. So this meant that I, as the OL, could choose to battle them four times in a row (assuming they lost). So if I want to "win" (i.e. following the rules strictly, and not asking if something is broken) we reasoned that I could easily do the following: fight heroes with first Lt, immediately I get to use treachery and pull my CBs. They can take one out of my hand with Earth Pact, but I still get one. I use this immediately to hurt a hero. Because all my monsters are upgraded, and becasue the Lts are beefy at this point, I have a good chance at winning. If I do, their turn ends immediately. Next turn, I do the same thing - take another item away. At this point, I can virtually neuter one hero, making him useless. That's a huge detriment. Turn ends. Next turn, again. And again. Basically I could have taken four items out of their party, essentially totally neutering two players or harming them SEVERELY, and there is nothing they could have done about it. This is why we house-ruled that Lts no longer get treachery - there's no point, it's overkill. We also house-ruled that CB can only work on equipped items, so at least there is a way for them to protect themselves.
As for dungeons, obviously this comes down to how you play as the OL and what your heroes are like. I would consider myself and my heroes to be very advanced board gamers (having been very into Descent, Arkham, Twilight Imperium, and lots of others). In the Copper campaign I would get through my deck at least once each dungeon level (so three times per whole dungeon, sometimes more). The Sorceror King favours Eldritch, and I constantly had skeletons with Sniper out to kill them and force them to inch through the dungeon slowly. In Silver, usually 2-3 times, and in Gold, unfortunately, once max. However, that still leaves A LOT of room for CB.
As others stated above, if the heroes are chasing down the Lts they have no time to upgrade and/or do anything else, and if they're spending all their money on maybe re-purchasing what I CB'd, they don't have money for anything else.
It's unbalanced. And unfair. The latter is okay - it's alright for something to be "not fair" if the other party DESERVES to suffer the consequences. But if something is unbalanced, they are being punished for something out of their control.
Which brings me back to my original question - and again, I don't mean to be insulting or hostile, but I'd love some sort of official response from FFG: was this game play-tested? If so, would you be willing to offer a bit of insight as to the process? If not, what can we do to help you fix this problem FOR FREE?
My main concern here is identifying what I feel to be a serious problem, but one with a very easy and obvious solution, in the interest of fixing it in the future.