Just a few questions regarding build mode: Do explosions (ex: creeper) break blocks placed in build mode? Let's say a player led a creeper towards a structure I built in build mode and let it explode, would the blocks break? Just found the answer to this via the wiki Can other players use doors, levers, buttons, etc. that are placed in build mode? If they can, I'm assuming that a locked sign is the only way to prevent them from doing so?
I believe so, just can't break them. I'd imagine that land claiming will be the update which prevents these things.
I believe the only thing that breaks bmode blocks is the Wither. For example, ghast fireballs dont break bmoded blocks. I can imagine creepers are the same. For levers and otger stuff, yes they can.