A: A louder "ping" when text is posted.
B: If a player gets disconnected they should have some sort of indicator in the "score" screen to let people know that the reason people aren't replying to them is because they have been chatting with a bot for twenty minutes.
I don't know if this thread will be looked at in the slightest but I truely hope these things are taken into consideration. It seems like both of these issues would be very easy to fix and they would make it feel much more like a multiplayer experiance.