Culprit Apprehended!

This may not be a total surprise: the culprit turns out to be Greg Miller!

Greg was actually already under suspicion, since the mysterious removal of the notices suddenly stopped while he was on vacation -- then resumed the day he returned to work.

It is fair to assume that Greg had some idea who might be posting these notices each day. But Greg never approached me about them, preferring to take them down anonymously when no one was looking.

What is remarkable here is Greg’s level of diligence. Every day he would scan the board, looking for anything that was not management-approved. This methodical Y staffer is the same person who insists that the statistics he has collected show that the golf court is used as much as the squash courts.