Why is surrendering not allowed in Dota?

Gleb «y0nd» Vazhnov explains that there will never be a surrender function in Dota 2 because players would abuse this feature. If there was a «Surrender» button, players could use it to avoid wasting time and effort on losing matches or to avoid punishment for bad behavior. This could lead to players surrendering too often, which in turn could negatively affect the gameplay and reduce the enjoyment of the game. Therefore, there is no «Surrender» button in Dota 2, and players must play until the end, even if the chances of winning seem slim.