Being able to forfeit doesn't stop people from purposely tanking the game. It incentivizes them to do it more to get their teammates to also throw in the towel

Being able to forfeit doesn't stop people from purposely tanking the game. It incentivizes them to do it more to get their teammates to also throw in the towel and forfeit. The difference is when it does happens, it drags out longer, but it is less common.