Do you think you can take everything off the table without any problems? Many hotels are beginning to introduce a "clean plate" system, which means that at the end of the meal, the guest must have a clean plate, and all the food must be eaten. This rule is introduced to control overly greedy people. In Russia, the buffet system is not yet so actively developed, but Turkish resorts are already fining greedy guests.
In addition, taking food to the room can also be punished, but this is usually not so actively monitored.