To what end? Tremendous effort for no purpose but to intrigue? Kinda like building an enormous underground labyrinth then filling it with sand, just to get a giggle at how much people will do (long after you're dead) to find the presumed hidden treasure that isn't there.
It seems far more logical at this point that the Oak Island sinkhole is a result of natural phenomena and rumors / myths. I'm highly skeptical that there is anything at the bottom of the pit.
