Everyone can see it, its not very well displayed but look at the timestamps of messages, if they have a dotted line under them it means the post was edited, hovering over the timestamp will also reveal when it was last edited and by who.
Holy crap, I did not notice this feature, and I bet most people do not as well. This feature was never mentioned anywhere. I do remember the old forum a couple years back shows the edited post time stamp right under the post, but was removed a while ago.
I've never noticed this either, and I've seen several posts telling people to check a mirror of the forum when they want to know if a post was edited; it's certainly a well-hidden feature, but quite useful. Thanks for pointing it out!
EDIT: I might as well make this post an example, it could come in handy later.
