Just watched this video on someone playing with the Minecraft world generator. You could possibly generate strongholds with this? Well, free horses amour and saddles. The amount of red stone and pistons needed is crazy unless you have a witch farm, which i want to build with someone. So what do you think? Worth it or not? And I'm not gonna build this, I'm the worst when it comes to red stone. www.youtube.com/watch?v=9iaU1TvIQqM
I have actually discussed about this technique in an earlier thread. The mechanism to push the dungeon rooms relies on many block updates. http://empireminecraft.com/threads/man-made-mob-spawners.31151/