I don't consider this an issue, but a rather basic suggestion. For context, I cheat in single-player a lot. The creative tank should be harvestable in survival with any pickaxe or even Thermal Foundation's Crescent Hammer (sneak + rmb). Please don't make this harder for the rest of us cross-mode players. Minecraft by definition is a sandbox game, modded or vanilla. And your idea for making the Creative Tank unbreakable is what I consider gatekeeping.

I hope you understand what I'm trying to get at. I'd like those changes made, please.