Quote Originally Posted by Alhanelem View Post
It's still going to come back later. You'd run out of farms to protect, enemies to kill or whatever if these things were permanent.
Who cares if it's not permanent, it's still way better than a static, completely unchanging world.

The things don't just suddenly revert to the way they were before, either. It's entirely up to players to reclaim the farm/help rebuild the bridge/etc or the changes are permanent.