Have you guys ever wanted to send a note to somebody who raised you telling them how grateful you are for them just destroying your Town Hall and leaving you with a shield? I certainly have. Or have you ever just wanted to start a friendly conversation with some cool dude whose base is shaped like a butterfly? I think that you should be able to! In the inbox underneath the "Share Replay" button should be a "Send Message" This could be toggled on and off in the settings to prevent profanity, trolling, or any other unkind tendencies, but it would be very fun! To prevent this from being spammed all the time it should follow a similar governance as the "Share Replay" feature: you can only send one message every 30 minutes (unless it is in response to another message). New Messages could either show up in the "Inbox" or an entirely new tab could be added over by the war tab and the inbox tab.
Anyway, what do you guys think? This would add a whole new online element to the game and could also help greatly with clan recruitment, helping people out, or just being friendly.