My suggestion today is that when you edit a post, notifications could be sent to anyone watching the thread. EDIT: I am not talking about moderator actions editing a member's posts, but when a member edits their own post. It would need an option to send notification or not, as it would be annoying to receive notifications for minor typo corrections, but I think it would be good if you could opt to send notifications for any edits that add significantly to the post. 2nd EDIT: You could argue that if there is something significant then you should make a new posts however I think that often it can be useful to keep relevant information, argument points etc. together in the same post, especially true I believe for the post post in an information thread. For example in five minutes after I posted this I might think of another reason to argue why this is a good idea, and rather than spreading such posts around the thread it would be nice if they are all together in the OP, and people get notified of a new point.