Hi,
did anyone tried to tear down the support? Does it always cause cave-in? Does the cave-in repeat itself? or If there is one and you clean the mess, the space is then usable for anything?
Question no. 2: If someone build minehole on the surface level and its ladder would end up in the structure below, what is the result? Non functioning ladder, not buildable minehole or destroyed structure (house, kiln, anything there).