Andy,

>You have missed the point of my posting

Please explain your point more clearly.

>>Over the last couple of weeks I have come accross several instances of drivers stopping abruptly / unexpectedly to let traffic out from the left.

Unless your first post did not explain clearly, before the vehicle(s) emerged "from the left", you did not have any idea why the drivers were stopping; on each occasion it could have been for something in front of that vehicle that you couldn't see. Absent a clearer explanation, afaict you're moaning because you've been caught out more than once by drivers stopping, but it isn't your fault, you're trying to justify your lack of anticipation with the word "abruptly" and said drivers shouldn't have stopped you just to let other vehicles out of a minor road at a junction?

>I dont have any issue with drivers being courteous

You do, the only "problem" I see detailed in your posts is your lack of anticipation of other drivers' potential actions in a given situation.

>as Geoff has already pointed out causes an accident.

Geoff posted, "I often let people out but not if i have a lot of cars close behind. Works alright in this area." ...

I suspect you mean TUD's post:-
>>That happened to my son was driving a customers car in the outside lane overtaking and car he was overtaking stopped to let a car out from the left
>>As you can guess he clobbered the exiting car

... but you have misinterpreted:-

. the accident wasn't caused by the driver "stopped to let a car out from the left";

. it was caused by the driver of the car exiting the minor road, entering a multi-lane major road, failing to check all lanes of the major road were clear before entering.

If I'm still missing the point of your posts, as I say, please explain what I'm missing?

Regards,