SIgh... I have to admit that I agreed with you. That's why you can see in my first post, I said that "So maybe, by law, they don't do anything wrong."
But now I'm waiting to see if they really put the trades to the market or not. If all those lost trades went to market then yes, they don't. In this case, just to warned other newbie traders (like me) that do NOT believe in those (Senior) Account Managers, especially the ones listed in my post (they're either evil or sucked, or both?).
Many brokers are market makers so in a way in many cases there is no real money sold or bought