No I did not Mark !
I finished my posting at the time specified by the update. I save my longer postings several times during creation as there is a time-out limit after which you loose everything you write.
Wouter,
In that case; in order to avoid confusion and misleading comments, you should prepare you posts in a text editor first. Then, once you are happy with your comments, copy them and paste them into a reply. Once you post it, it's out in public.
You may or may not be aware that if people subscribe to a thread, then they get emailed what you post originally, not what is edited.