Is it time to start calling out bad cyclists?

With all due respect but you have the biggest clue as to what is potentially coming....The junction on your left!!!!!!!
If you see a left hand turn, then the chances are there will be someone looking to pulling across your lane. Expect it and get no surprises.

Couldnt agree more. i do not cycle down this road merely making an observation from the few times ive walked down it to stockwell tube