pedestrians didn't get out of your way when you thought they should
The roads on Wentworth are reasonably narrow. It would have taken nothing for them to slowly saunter over to the grass by the side of the road - they had about 40seconds or more to do so.
you didn't want to stop completely and let them walk round your stationary car
No, I didn't. There was absolutely no need for me to come to a complete stop (see above), they were merely being awkward and provocative.
you gave one of them a 'punishment tap' to make a point
The way you've worded that almost suggests that I turned my wheel to make contact. I held my line. They weren't crossing the road, they were walking along it its length. Like all the examples of folk deliberately slowing down while crossing in order to 'challenge' the driver to hit them, they are ultimately looking for a confrontation. In this instance, I was happy to oblige.
But...I'm thinking you might be one of the guys...