Completely false statement. The Delta pilots many years ago decided they were tired of contract progress and decided to not fly overtime unless it was a greenslip with conflict. Pilots schedules were publicly posted of those pilots who continued to fly overtime. In response the company allowed any pilot to block his schedule so other pilots could not view it and find out who was flying over time. DALPA filed a grievance because being able to check another pilots schedule was past practice and essential to insuring contract compliance.
DALPA won the grievance and the company had to allow all schedules to be viewed. The company added the snitch feature at that time so a pilot could tell who might have viewed his schedule if he was harassed.