That works -- unless the original question was asked anonymously.

I know, there are a whole list of other reasons against anonymous posting, but this just adds one more reason.

This also requires retraining the population as a whole, which anyone who's had to deal with IT security knows can be a losing battle.

(I'd also prefer to see updates handled in a more consistant manner -- it's up to the poster to mark what the changes to the post are, and they may make significant changes without marking that they were changed, or when they were changed, etc, making it look as if people responding to the messages are idiots by their comments)