Is it time to start calling out bad cyclists?

I don't like broadcasting negativity like this but i really need to get this off my chest. Apologies if i lower your mood:

Should I have said something to the irascible cunt who intentionally rode into a teenage girl leading her little sister by the hand across a road in Covent Garden last night?
Yes they jaywalked but the cyclist had more than enough time to stop. As it happened, he slowed to a crawl and gently steered into the girl – he had to turn very slightly to the left to do so.
I'm certain this was intentional and done as a statement of sorts.
She looked pretty shocked, and more so by his "wake the fuck up" outburst at her.
It was his swearing and muttering as he rode away that convinced me to keep my mouth shut.
His utility bike/commuter gear may have ben expensive but he is obviously a damaged and bitter cunt who would only respond badly to an admonishment.
I can't help thinking that he wouldn’t have behaved the same way if it had been me or someone similar to me crossing that road.
Fucking bully, I've never wished harm on another cyclist but I hope something horrible happens to you.

mao, can you just clarify, what type of bike was the guy riding was it titanium? Was he wearing Rapha? Did he have a cravat?