@Jeffro - It was actually my first time trying to add a link during an edit, when the usual "link" button isn't present and I couldn't remember whether your comments use bbcode or HTML. Sorry about that. Go ahead and delete my comments on this subject if they are distracting from the intended discussion.

Off the top of my head, I don't know of any comment flagging plugins but it would certainly be a pretty sweet addition to Ajax Edit Comments.