As it states in the image below, clicking this option disables the accidental click on the action box of players, but still allows specific icon clicking.
The problem being, from my perspective at least, is that the specific CHAT icon (which IS still clickable) is aligned in the same vertical plane as the kill button for the titan and, thus, DOES allow mis-clicking.
Whilst I understand that some players do want to communicate with other players whilst titan hunting, I suspect others would love the option to make the WHOLE player box unclickable.
So, in essence, make another preferences option that :-
"Hide players whilst titan is active"
or
"Make ENTIRE player action box not clickable" <- my preferred solution
Edited by Pardoux, 05 January 2017 - 20:56.