Who else remembers when the ability to close lj-cuts was first introduced? Before that, the lj-cut behaviour was just that everything after the cut tag would be hidden, and people were used to using it like that. So, for instance, if they were discussing several things in an entry, and one was a spoiler, the spoily material would always come at the end. When the ability to close lj-cut was introduced, people carried on doing the same thing, but would then close the cut and write "wow! uncut text!" at the end of their entry.
It took a while before people started doing this, and using the feature properly, and during the intermediate timeframe, everyone was driven insane watching as one person after another tested out the new feature.
So with the introduction of comment editing and private messaging on LJ, I'm now wondering: how long is it going to be before we start seeing comments edited to say something other than "look! an edited comment!" and private messages that say something other than "look, a private message!"?