My own personal rule would be to only mark that I edited a post if somebody actually replied to it and my change was relevant to that response. (It is unfair t

My own personal rule would be to only mark that I edited a post if somebody actually replied to it and my change was relevant to that response. (It is unfair to make the response no longer make sense.) I've actually edited this response six or so times so far, but would expect few people to notice and marking it as "edited" would just introduce noise.