I'm asking this option because I've always been wondering why [disable XP-orbs] isn't an option in the first place - and it's just shame that I personally can't continue playing this game the way I want to play it.

I'm just hoping that some year I can finally get the peace in to my mind about this particular subject, that has been rounding in my mind for ~5 years.
I'm not in rush in any way, so I can always wait more, but I just wish that I could get some kind of clear answer to this question.