hashtag bloody cyclist

[steeeve66]

the lights were red and I slowly filtered my way to the front - various routes so to speak but finished on the left, between the kerb and the lead car

That doesn't sound like a good place to be to me.  I try to never sit anywhere a car can turn on me.  If I filter to the front (always on the right hand side or between cars if there is space, but never between car and kerb) I will generally just about always stop right in front or partially across the lead car.  If that means I'm touch over the junction line, or onto a cycle box so be it.  I've had to many cars turn on me, and I don't mean just to take a turn some have intentionally tried to run me into oncoming traffic.

Good point, but that part of London is a bit of a bun-fight at that time of day - plus, as we were behind the cycle box, there's a good few metres before you get to any junction where anyone is turning left. Unlikely the car could turn left on to you.
In any event, my question was about the cyclist shouting at me...