Pedestrian flashing lights: what are you supposed to do?
It seems like the vast majority of pedestrians and cyclists will stop, look, and wait for traffic to pass before attempting to cross.
But I have had two instances where Karens use the button as an on-demand no-wait green light for themselves. They press the button when there is oncoming traffic, expect drivers to slam their brakes on a flashing yellow, then give drivers weird looks when traffic doesn’t stop since they didn’t have sufficient stopping distance with cars behind them. They’re going to cause a pile-up one day.