broadcast a message when a player presses to ready
this is a possible addition to the "ready mode" used in some 1v1 servers, when a player presses the button bound to "ready" the other player could receive a text notification message to inform them that their opponent is ready
seems like a good idea
Another idea to do, QuakeWorld's style:
Every 30s/1min, and broadcast a message saying : "X players are not ready !"
The main issue would be that for private TDM/CTF PUGS, this would be annoying.