Here’s how to make GDM stop showing *every* user account at login screen by default. I don’t know why they released gdm with the broken gdmsetup and showing all accounts in the window by default.
The Windows Registry is a hierarchical database that stores settings for low-level operating system components, kernel, drivers, services, and user interface along with 3rd party applications installed on the platform. Before you dabble, it might be a good idea to backup your registry using a restore point or exporting the registry to a file.
The only useful text chat is the friendly team chat. The public chat that defaults to the ‘t’ button is useless. The only thing you’ll see there is whining, complaining, and other types of spam. I found it not only useless and annoying, but distracting sometimes. 1/20th of all text is team chat, so it’s much less intrusive. Everything in the configuration file I describe below is user interface stuff. There’s no hacks or cheats available here.
Removing the pcspkr module is fine for an instant halt to all beeping noises coming out of the machine, and sure you could just add this to your profile in .bashrc or .bash_profile, But the right/best/most complete way is to do it system-wide where it doesn’t even get enabled in the first place by blacklisting it in the modprobe configuration.