This is ultimately what it comes down to. Cruise lines have all pretty much came out and said no to the whole duck nonsense. That is their official stance. Unfortunately, the pay structure on most cruise lines relies way too much on positive and negative feedback from passengers. It is not worth it for the crew to risk getting yelled and screamed at or getting a negative comment over a rubber duck and some might even help just in the small chance someone will recognize them and put in a good word for them. Ultimately, the entitled passengers who do the whole duck thing are simply exploiting a flaw in the pay structure. A crew member is not going to risk a promotion, raise or their job because a cruise Karen wants to put a rubber duck in a flowerpot. So, the entitled think they aren't doing anything wrong (or flat out just don't care that they are), the crew gets to fight another day and those of us who follow rules just roll our eyes and talk about the entitled behind their backs. The world keeps on spinning.