Gotmygearup
As I said its been a long time however a little research has revealed that HA may have separate actions for the "republication" of the item. A lot depends on what constitutes publication in the NT.
However I would have thought that he would have had problems proving who did copy the article and pass it on. Besides, I would have thought that he has a few other problems than trying to track down all and sundry who may have copied the thing and passed it on.
HA needs to realise that lawyers have a saying that the only people who win defamation actions are lawyers. A court room is privileged territory and a lot of dirty washing can come out in a defamation action.
Hope some of this helps.