Add a new check box in all pvp/sector/bvb rooms that says 'Enter Message' and when you click it you can type in a message that will show in the chat box to every player when they join the room. This would be so convenient for a lot of people.
Examples:
'All suicide'
'Don't take red boxes'
'Lucky only'
'Only doing lvl 172'
'No Jura allowed'
'Holodeck only'
'no pushing unless red hp'
etc.
So when a player joins the room it will show that on their screen in the chat box. If you have an important message to tell all players in the room you could just have it automatically tell everyone.
Or if you are waiting for a friend and so you are kicking everyone who joins their spot.. you could make the message 'sorry waiting for friend' or something, so the person knows why they aren't just being randomly kicked.
And if the room master changes the message it would reappear for all players already in the room so they would know too.
Maybe make member only? idk, up to admins
I think this is a great idea though cause its kinda lame if you are going to have specific rules of your room you have to make the room name say the rules or spam it to everyone who joins.. with this idea you can easily set it up so everyone who joins gets to know the rules automatically.