I'm not exactly sure if this suggestion is feasable, but I think it can be done.

As far as I know, chat in jj2 is always sent to the server and then to clients. Because all chat goes through the server, would it be possible to regulate or selectively filter chat? I'm thinking of an !ignore [player number] command here.

If player 5 was bugging me, I could type !ignore 5 and not have to put up with their chat. The server would recieve my ignore command and stop sending me the packets for player 5's messages. Again, I'm not entirely sure this can be done but it would be cool if it was possible.

There's already a way to ignore players in jj2, but it's completely client side and is more of a bug. Not to mention the fact that you can't unignore them, and it messes up their sprite.