Ro,
If they want to make a change, they can just make a new post.
That's what editing a message does: re-sends it by email as a new post (with a note at the top saying that it was edited). Unless you're a moderator and choose not to resend it.
If you read messages on the web the difference between editing and posting a new message is that if the message is edited you'll see only the most recent version. Unless you click on the Edited badge, which will let you see prior versions and compare versions.
Has nothing to do with closing threads, in fact, I dont want to close
threads, my group has never needed to do so.....
I didn't think so, I only mentioned it because it is the only thing I know of that disables editing.
-- Shal
Shal Farley