Hey, many times you see people sparring; or playing something else, but you only want to talk with they, so my suggestion is to make a command that allows player to connect to the server chat instead of connecting to the whole game.
Is it possible? Shortly I mean something like that:
according to toribash.wikia.com you can do this already.
Command
/chat [room] - Connects to the room so you can view its chat and write messages to the players (you'll be autospecced in that room).
*You can use that command even from the single player when using the 3.9 version.