Is it time to start calling out bad cyclists?

Rode to work just behind an older gent on a gold MTB this morning. He was on his best behaviour and a model cyclist. All safety checks and letting other road users pass and remaining calm and collected at all times and not swearing or shaking his fists at anybody, even when he was almost cut up by a car (I saw "almost" because he anticipated what the driver was about to do and modified his speed accordingly) and when some other dude zoomed through the foot-wide gap between us as we were stopping at a RED to let some pedestrians across a crossing.

When I grow up that's who I want to be. Why don't we have a thread for calling out good cyclists?

Because other road users don't tend to notice the good ones. When asking/demanding for better conditions it's the bad ones that are held as a reason to give ALL of us the chevrons.