Is it time to start calling out bad cyclists?

Exactly the same thing happened to me the other day, on CS7, long story short this guy desperately wanted to get past me into the blue box because the front car was indicating left, moaning "you're in the way, you must move forward"

a) if you're that edgy about a car indicating left, just drop back
b) there were 20 bikes at the lights, I guarantee the driver knew we were there

Without looking I knew he'd have a bell, as we all pulled away I said "ring your bell, you'll sound like even more of a cunt"

"Cock" I heard him retort a little further down the road.

I think we were both right.

If you were in the cycle lane but there was space to move into the box, why not?