I think he means this
Right for LV 4: /Server Message
When you preform this command it sends a message to the server and it comes up on that servers rc. Like an example given. Someone hacked an rc on your server so you send a message to other servers to watch out.
And if it was really important you could use /All Message and it would go to all the servers. But also, You would need an ignore command if you do not want to recive and messages also there would need to be logs of the message being sent/recived so if anyone abused it they could recive punishment.
EX Of Syantex: /Televe Hey guys, Watch out there is a hacker that just stole an rc here his account is <Account Here>
Then it would go to the server Televe and say the messgae "Hey guys, Watch out there is a hacker that just stole an rc here his account is <Account Here>"
I find this would be really helpful indeed.