What is the function of "Click to hide the notification bar"

[AC Question]

I have a Lenovo YOGA Tab 2 8" and this option is in the Notification center. I am running Android 5.0.1 Lollipop.

 

[B. Diddy]

Welcome to Android Central! If the function is on and you tap the notification bar, does it hide, such that it doesn't take up any screen real estate? You can probably bring it back by swiping down from the top a little.

 

[shaunn]

The notification bar still works normally as if the option was unchecked. Still a bit clueless to what it's function is :-\