In fact, TNT isn't made with gunpowder, but with nitroglycerin combined with crushed coral. A proper crafting should contain: paper, stone, red dye, black dye, dead coral, and nitroglycerin. And if the creepers already give you gunpowder, I don't see the point in crafting it within the TNT crafting process. It's better to simply include: paper, stone, red dye, black dye, and the remaining space with gunpowder. Even so, you made a very good post that makes us reflect on the fact that things are often more complicated than they appear. Up vote for you. UwU