If you are in a chat room and someone has said something, then WHY would anyone need you to repeat it? Unless of course, you happen by a one in a BILLION chance to have had the same thought at the same time and then typed it at the same rate... And if you join a chat room, SCROLL UP to see what has already been said.
And the same goes in the real world. Person A says something. Person B says something. Person C does not need to repeat what either of the former parties have just said.
