We were on Journey and Quest last summer and had the QR code all three cruises. I returned them all and had responses from several different managers regarding my comments within minutes to hours of completing them.
I truly believe that if issues arise and are brought to management in a civil fashion you are in turn responded to civilly. If you act like a jerk towards the crew and officers, yelling and acting out, I don’t blame any of them for being defensive and perhaps not warm and accommodating. We had someone on one of our Quest cruises in August who was called out (not by name obviously) by the captain shipwide for their behavior towards crew, and told in no uncertain terms that if they did it again they would be escorted off the ship.