Is it time to start calling out bad cyclists?

This scenario shouldn't occur though. As traffic moves off, make eye contact (or other preferred communication) with next car back, then move out into that space behind the car that was alongside and the next one back. If the car that was to right whilst waiting then turns left, no worries as now riding behind it so can either slow up or overtake.

If you're going straight ahead, why would you take yourself out of the traffic streat only to force your way back in when the traffic starts moving again?
Why not just stay in stream before and through the junction and only when you've passed it, think about the gutter moves?