Is it time to start calling out bad cyclists?

If I'm riding between a bus and a car heading up to a set of light, I ride slightly slower allowing myself enough time and distance to perform an emergency stop in case someone quite literally jumped out.

It's very foolish to go at a normal speed while being sandwiched by a couple of vehicles in a busy section.

i do slow down while filtering but my point is that even tho there is a crossing less than 100 yards away they will still cross in front of a bus which they cannot see round thats why i think it is time to start calling out at peds that do this but only one rider having a go will do nothing but if half the riders on the forum did so then maybe they would think twice before crossing