I’m aware, I think they are very confusing to pedestrians. I know when I see a red flashing sign when I’m going to cross, my first thought is don’t… and I think it contributes more to people being confused and just saying screw it and crossing any time.

A walk sign with a countdown would make more sense, a red flashing hand with a count down could be interpreted as don’t walk till this is done, or you can walk for X# of seconds.