If the automatic tipping leads to poor service, why is the service spectacular on lines where tipping is not allowed? (Silversea, Radisson...)
I had no problems with any service anywhere on the QM2. The problems we had were because of a combination of newness/unfamiliarity with the ship and under-manning - lots of new employees were seasick (having never been at sea with 40 foot waves). All service employees I dealt with, worked their tails off to try to satisfy.