The surveys go to the ship and are reviewed by management on the ship. The positive and negative feedback becomes more difficult for them to address as time goes on.
Crew turn over all the time. A cruise that was two or three cruises ago becomes difficult to remember when they do this day week after week with new faces every cruise.
I don't respond. I hate surveys. Every phone call, every ticket for any vendor in life seems to want a survey, just 5 minutes for this 15 minute survey. I don't do surveys. Period.