Why do we need to make our presences known? The only thing I've ever had accomplished with that is people spamming me with friend requests, asking me to do server commands or asking "oooh oooh how do I get admin?" which is exactly the reason why I don't openly reveal I am an admin. We even had a feature like this back in the day where you could type !admins and get a list of Skial admins, but we removed that specifically for the reason that people would use it to make sure they weren't being spectated for wrongdoing.
As Luke pointed out that this only encourages people to behave when only certain people are present on the server. I would prefer the server to believe an admin is still watching even after I leave so that we don't get micspammers, griefers or hackers thinking "Hey, Roboute is gone now, time to start pulling shit!"