Change name of user

For what it’s worth, we really do not put much, if any effort into this plugin as of late, so feel free to modify if you need to.

If you’re wanting to make it so the user’s email is displayed with the message rather than the user’s login name, you’d want to edit this line https://plugins.trac.wordpress.org/browser/chat-room/trunk/chat-room.php#L164 and change which property on the $user variable gets output.