Title: A Reply All Message Function
Summary: We have already taken a great stride in the messages with the "Reply to List" function, but I would like to propose adding a "Reply All" function.
Details: All too often, a letter is sent out to three or four people who are not of a specific group. To reply to all these people, you have to individually select them every time you want to send a letter. It becomes a nightmare when the number goes up. Just like an e-mail service, we should implement a "Reply All" button, which takes you to a new message addressed to the addressees of the previous message.
Benefits: Saves time, saves frustration, prevents people from getting missed in group correspondence. Streamlines the message system.
Possible Downsides/Exploits: It is pretty low-impact gameplay wise, so I don't think there would be must to abuse.