theres many who dislike rio score and the upcomming in-game m+ score.
some have suggested the option to turn it off.
i say thats a great idea, but anyone who opts out can only play with others that opts out, players who keep it on can only play with others who keep it on.
everyone will be happy!
maybe those who opts out will also have their armory and achievements disabled or invisible to others, so rio cant get info from it and others cant see it.
could also disable the ability to see what class signs up and their ilvl, heck maybe just have a m+ dungeon finder for the opt outers.
no "gatekeeping" at all is exactly what they want.