Auto-delete

[Mirag]

I see that the old chat messages are not removed. This can cause the server load. Need to chat itself delete old chat messages. Maybe it's good for the server?
This is all seriously. I can't use game chat after a few minutes after starting the game.

[Ramine]

Not sure, I wouldn't like it if the chat deleted old messages. What if your Rping with friends and have to go afk. I personally like to scroll up and see what others Rped about while I was gone. So yes, it might cause confusion.
Maybe if there was an option that you 'can' make the chat delete old messages. Though, I don't see it happening.

[shell_prisoner]

I don't think server saves chat messages. It is more likely chat history is stored on your computer.

[Kyugima]

Well, seeing as you have already seen the messages when they pop up, and new players don't see old messages, it is not causing a server strain. I think it would actually cause more issues to have the server delete messages than just have them sit there.