I don't know about anyone else, but I find that the length of a calendar item
Subject line is precious. Particularly when viewed in a calendar grid or on
a synced mobile device. I want to be able to recognize a meeting in the
first 20-ish characters. I will often re-edit my copy of meeting invites to
fit my context.

Therefore, I do not like Outlook's behavior of prepending "Updated:" to
meetings that have been changed by the inviter. I know the meeting was
updated when I accepted the change. (No I don't allow that to automate).

Is there a way to stop this? Please give it some thought in the future.
I'd rather see a status change of some sort that fooling with my title.