Can I just say (tedious to my own ears as well as yours, Jonny) -
June might not use other forums, and may not know, that's fair enough, but most people that do use other forums would say that it's accepted 'netiquette' that you do not edit your post after someone else has replied to it. Or if you do, then you put a little note to say how you have (edited for terrible language and clarity). Otherwise, as you say yourself, "I didn't see the original post so i'm using Nigels interpretation." - the thread ends up making no sense and Misunderstandings occur.
I'm sure most people would agree that's pretty common. Though like NOT TYPING EVERYTHING IN CAPITAL LETTERS or swamping a forum with lots of posts about your pet subject, berating anyone that disagrees, and then pissing off, it's largely an unwritten rule innit.