Is it time to start calling out bad cyclists?

Head-down arse-up twunt rear ended someone behind me this morning in Parson's Green.

Coming up to pedestrian crossing I'd seen someone (the other side of a car) possibly about to cross and so I was feathering the brakes.
Woman on bike in front of me sees the pedestrian late and skids to a stop.
Bloke(1) behind her brakes hard and stops in time.
I brake quite hard and stop in time.
Bloke(2) behind me also slowing down in time.
Bloke(3) behind him not paying enough attention and takes out the bloke behind me. Luckily they don't skittle as far as me.
Everyone else stops in time.

Now I've run into the back of someone myself once, but at least I had the decency to admit it was my fault and understand how I'd let it happen.

Not Bloke(3). Didn't hear much of an apology from him by the time I'd left them.

I blame Strava.

was it this guy?