I've received word that Carnival is moving away from the paper comment cards and the pleas to give inflated ratings to everything. They will continue to use them until existing stocks of the cards are gone.
Instead, Carnival will be moving to on-line feedback either by sending e-mails to recent guests or with a new process on the Carnival website. I expect to get a press release soon. Word is that those who complete the electronic versions will still be eligible to receive prizes, such as has been done for years with the paper version.