User blog comment:Dopp/Upcoming change: Removing the divider between the Edit button and Content/@comment-1169889-20110505051143/@comment-13301-20110505133849

And what if there are more than 6 edits on the article since you last visited it? The "Last edit by" only shows the last 6 edits (not really sure about the exact number, it's just an example). You'll need to access the history anyway to see all the changes.

Also, the "last edited by" lacks the edit summary, so if you see a IP editing that article followed by a user, you won't know if that user undid the edit by the anonymous user unless you access the history.