BendSinister: There's no discernible upside to keeping this in place in an environment so hostile to the 'mystery' category. GeoCheck alerted me to escalating brute-force attacks (very strange for such an old puzzle) and my guess as to who did what turned out to be entirely on the money. It was worse this time, as the coordinates were eventually revealed, though admittedly activity suggests that at least a few didn't notice. :)
It's all just so avoidable. And brain-crushingly dull.