Right now it is just annoying. Sure it is nice that you can stack chests, but bad that you can stack logs and go over walls.
In the MMO, if you can stack logs - chests - barrels - anything - to get over walls, what is the point of walls?
And if you have no place to store anything securely, what is the point? Your crops, animals, ropes, containers, everything not on you can be taken. If everything not in your inventory can be stolen by anyone at anytime you are not online... where is the fun in playing the game? After 1 day, 10 days, 10 months playing the game you are sent back to making primitive tools and hunting for apples for food again. At least force people to create siege equipment to get inside walls. You forced us to spend all the time and flux to make walls and gates, please make them worth even making.
Please remove the Z axis option for dropping objects.