Unfortunately, half the point of Project Spark was collaborative game editing and sharing of user-created content. They could've avoided turning down Spark by n

Unfortunately, half the point of Project Spark was collaborative game editing and sharing of user-created content. They could've avoided turning down Spark by not having that feature, but arguably, that'd mean they never turned _up_ Spark in the first place. A game engine with no way to share games isn't very interesting.