What is the chat feature, and why don it work?
The chat feature has a history back to the early versions of War FTP Daemon. In 1.70, the feature has not been fully implemented. What it does in 1.6, is to allow the site-operator to send messages to the FTP users (provided that they can see the FTP reply codes), and also a way for the FTP users to send messages back to the FTP server console trouch a special command.