Yes, I can see that. One thing I do is try to cover what I call "administrative issues" in every chat...with everyone. This includes issues of deadlines, timelines, grade postings, and other information that could be helpful for everyone. I don't want to waste anyone's time, of course, but students usually think this is worthwhile. It isn't exactly course content but it seems to help things run smoothly. Do you think this is a legitimate use of time?