Originally Posted by
Awesome_guy
Estimations result from "volunteers" asked by Cast Members intermittently. Volunteers are given a lanyard and a red card that is scanned by a Cast Member as it's given at the beginning of the line. The card is then given to the Cast Member loading the attraction and scanned again. Voila: time estimate.
I've been a lanyard volunteer twice (once on KS in AK and once on Peter Pan in Disneyland Paris, exact same system). I'm sure many others have been, too.
I can't imagine false times are that intentional.
It might just have been too long since someone has been sent through to measure a line or a mass fluctuation for whatever reason. We've all been that person in a long line that hasn't had hardly anyone come afterwards.