I don't like this idea because I have three characters of all three classes. However, I do believe there should be a restriction on farming the same class with three separate characters. Have the nightfalls as weeklies and the vault be a one time deal per week with every class. Therefore, I can still farm all three per week because I use all 3 classes.... This would prevent people from leveling the same class 3 times just to swap gear and triple dip on the rewards. I feel somewhat punished because I'm enjoying all 3 classes, where as other players don't have to farm or play nearly as much with three characters of the same class because all their materials and time essentially go into the same character with 3 times the rewards.