I don't think so Bob; they are just personal preferences. Not like fast artillery which probably just has a code limitation making it effect your opponent.
I always play with the hex grid turned OFF, I find I can read the map better, particularly when it comes to elevations. I quickly got used to it and would never go back to playing with the grid ON. I've never had a complaint from an opponent.
Same with ID flags. I use them sometimes, but rarely. No one has ever asked me to change these settings; including you ;-).