I was pointing out the ridiculous accusation that he was "obviously one who had lashed out in the past" and asking what made it obvious.
I began by saying he was an unpleasant man but reporting it would do no good as he did nothing really wrong. Threatening behaviour, in the way the OP has described ie. her following him which resulted in him swearing and littering won't warrant police attention.
Besides the changes in her story, there's something about the OP's actions, that seems off. She marched down the street, posted (or threw, depending on which version) the leaflets into his bag despite her bad hips. She had no issue accosting him despite him being someone who has obviously lashed out in the past but then after frustrating him to the point where he turned around fist raised* and used his words to get her to back off, she then made some calls and ensured they won't employ him again.
There just seems something a little Daily Mail about the OP and having debunked the myth the police would see his actions as unlawful threatening behaviour, I can't see what he should be charged with or reported for.
Imagine the OP answering these questions and the police remaining on her side.
"And where did this happen?" - "down the road"
"what was this aggressive man doing?" - "walking away from me"
"what had he done to make you follow him down the street" - "he put something through my letterbox"
...
"well, he's a naughty boy for littering. What did you do next?" - "Well, I threw them at him"
"and that's when he swore?"
*again, depending which version you read he swung, got ready to swing, stopped himself swinging or began to swing