Or unless you send a command, which I am making for an add-on.
A command that gives you the IP of anyone in the server? Not only is that pointless but it's also abusive. I strongly advise against it.
No, I think Visolator is making a script where only administrators can get the IP address of a player, in order to moderate the server more efficiently.
pecons already made onehttp://forum.blockland.us/index.php?topic=218128.0You could find it in the RTB add-on dumps.