Actually I'm still unsure what caused the corruption, I actually think it was the update to v1.10 that caused it and not redstone related but as I cant open it I have no way of proving what the cause was.
As for the aim of the game... Its was/has/is a sandbox game, there is no endgame.... you kill the dragon you continue on.... there is no end so therefore it's the players that make the game/limits/roleplay...
"End of Skyblock"... Smaller area than we have and you have nothing but void and a 7x7x3 area to start on and probably teaches players more about the game than anything else
Fantasy Building (Westeroscraft as a PRIME example)
Circuit building with redstone... probably all have seen the guys whom built computers in minecraft by now