Right, so... friendly reminders, mini-modding, telling people what to do etc.
For me it's a matter of tone. Being a moderator gives me the authority to tell people what to do in this forum "don't post on this subject again", no-one else has that authority. Which means that people shouldn't have to deal with other people telling them what to do. However, a request can be made by other people, "hey, we're getting off topic here and it's making things confusing, please can we stick to discussing Morn's audiobook career?"