USERDROP      - Drops registration of the given username
 USERINFO      - Gives extended information about a username
 USERLIST      - Lists registered usernames
 USERREGISTER  - Registers the given username
 USERSETPASS   - Changes the given usernames password
 USERSUSPEND   - Suspends the given usernames registration
 USERUNSUSPEND - Unsuspends the given usernames registration