Right it's not a formal dining room. It's the dining room on formal night. I believe that the "few dress suggestions" are not enforced because of the risk of losing business. If you stop someone at the door wearing shorts, ball cap and flaps and tell them they are dressed inappropriately for formal night they will get offended and take their cruise business elsewhere. Multiply that by all those who do this and it adds up. It's all about the dollar.