The chat box as it currently stands is only 5 lines long (or is there a way to make it longer? If so, feel free to share and lock the thread), which is much to short to have a conversation between more than a couple people. In addition, there is no way to go back and find what someone said more than 5 lines before.
The solution might be a different chat system, or at least one like Minecraft (hear me out) where, when you go to type, the chat box increases in size so you can see the history of the last 10-15 lines (maybe it's longer, but you get the idea if you've ever played it).
I know in a lot of cases, this isn't necessary, especially with the lack of teamwork and mute players that naturally find this game and enjoy griefing or such. But when people do want to work together, the chat system isn't very useful. A larger chat system could actually encourage teamwork.
Thoughts?