As a Diamond member I cringe when I read posts like this, Cunard is fair with what you can bring on board, personally I am very discrete when bringing alcohol onto the ship and remember when in port you can bring alcohol back on board. Bringing glasses of spirits to an upmarket lounge is a a sure way for the company to crack down on how much alcohol we can bring on board. Being discrete both in the dining room and lounges I feel is the way to go, after all it is not a ferry you are sailing on.