We could have written this exact post - the behavior on the Dream's maiden voyage was something we had never seen before & hope to never see again. We were convinced that at least half the passengers were not Disney fans at all but ebayers looking for a quick score. The scene in the stores when they opened the first night was horrible!
DCL seemed to have no control over the chaos that went on.
Now, in spite of all that, we went ahead and booked the maiden voyage of the Fantasy. It was amazing!!! DCL definitely put very strict controls on everything - from preordering maiden voyage merchandise that was waiting for you in your stateroom, commemorative champagne flutes that were in your stateroom (1 per adult), limiting store purchases of any maiden voyage stuff, etc. The whole vibe of the cruise was so different than the Dream's maiden. I would hope Disney remembers the past & applies that to the Wish's maiden voyage.