Ello ello. >D
I just had a quick idea which would hopefully make lives of less-fast typers easy [including me >D Ok I'm not a slow typer, but not a fast typer either, but that's another story]. I have noticed that, scrolling on the chatbox in-game is quite hard, since if you scroll up, every time a new message is posted it will bring you back down to it, so it's pretty difficult to read a message you missed by your friend or whoever. :B
Maybe a button which would "pause" the chatbox would be good? Like, when you click it, new messages are not posted, and you can view already-posted ones. Then, when you click it again, new messages start appearing again. (: