I know this will probably sound like a strange thing to complain about, but can we get back the message appended to edited posts?
I know the ability to edit posts comes in very useful at times, for typos and what not, but it is also way to easy for people to abuse it and do 1984 style changing of what they wrote earlier. I've only seen this happen once to my knowledge (by a certain colored leaf who shall remain nameless), but it is much easier now that we have no way of knowing that a message has been edited.
Please do consider putting that feature back in, IMHO it is important.