I've noticed that a particular poster will post a one-sentence post at, for example, 8:30. Then at 8:31 they will post another sentence that could have easily been posted with the first post. These posts are always within the 15-minute time limit to edit. Sometimes they are "stamped" with the exact same posting time, so it seems like this is not an after thought but a planned way of posting. So, is there a rule against something like this where it appears that someone is just trying to boost their number of posts and/or make themselves highly visible?