like it says ^ it would be better to be able to place ore blocks. Reason: it messed up with McMMO plugin by being to get more iron/gold/diamonds ore blocks with the Double Drop.
McMMO might be brought back, with luck, in the near future. Getting something like this back would make sure it was not brought back. McMMO > decorative blocks.
traps... like people in towns with diamond ore door. ant have a hole somehow hidden and they fall to their death.