Forum Rider Down and/or notification of minor incidents

This.

In addition, one shouldn't let people out/through against the right of way, as other road users may not be aware of your actions.

Obviously this is hard to stick to when traffic is solid, and there are no natural gaps for drivers to turn into...

People get rather miffed if I don't respond to their 'kindness' when they wave me through their lane with no regard to adjacent lane(s).