Thanks so much for the update Bajamike.
After our numerous Cruises on at least 5 different Cruise lines, we were always given a "Comment Card" on which you recorded your reviews, complaints, and suggestions. We always thanked them for the "topless" deck availability (Carnival Holiday), and on Ships that had no such amenities, we suggested that they consider such a deck. We stated that we would look forward to Cruising on Ships that offered the "topless" venue over the ones that do not.
We never received any responses from any of the Cruise lines concerning our request, and have since (on our last 5 Cruises in two years) have no longer received the "Comment Cards". Maybe these decks are not so popular any longer, which is sad.