Please Help : Coding Null values Boost Server population!

Okay so i have a question and was wondering if any of you coders could help

i have read in multiple places online, that once hosting your own server there is a way of boosting it to the top of the 'Community server list' - by adding 'Null Values' to your server name.

i was hoping that someone here would know what i'm talking about and edit this for me, or at least explain how to input null values and the correct null value/code to use.

Any help is much appreciated <3

# -- Server --
isPrivate = 'False' # Hides from the lobby if true.
serverName = ' Blankety blank blank'
maxPlayers = '30'
portNumber = '24315'
password = ''
# -- World --
worldSlot = '29' # -1 creates a new world.
allowSaving = 'True'
# -- Game --
gameMode = 'Survival' # Survival, Creative
restartTime = '14400' # 0 seconds to disable.
useAuthAutoBan = 'True' # Auto ban clients with questionable authenticity [piracy / hacking]
greeting = 'Welcome to Kings Calling! Join us on our TS3 server at - 109.169.20.100:10153 and check our website out at - kings-calling.shivtr.com' # The message that is displayed to new players when they join.
enableCommands = 'True' # When set to false commands are disabled for all client admins.
autoBanDays = '0' # Time in days a suspicious client gets autobanned, 0 disables autobanning
detectInjection = 'False' # Auto ban clients suspected of DLL injection