Not sure if anyone is aware of this addon but it is in my opinion a lifesaver for guild officers or guild leaders.
I wont write what it does, its much easier if you go read but here’s a couple of screenshots
If you mouseover someone in the guild roster you get a more detailed window
An event log (Shows any changes depending on what you have ticked as wanting to be shown)
Go take a look, you may wonder how you ever managed without it.