Gosh, I will repeat again and again - nobody is going to ask a huge score, because ppl with score like that just won’t apply for +10. You are gonna wait for hours if you set such requirements. Ppl with high scores have high level keys and want to group with people with similar experience in order to avoid frustration. It actually works the other way around too - players with low scores better not get an “overqualified” player in their +10 group - in case of wipes s/he is more prone to leave the group because s/he will see it as a waste of time.
I personally find this addon a blessing - I like pushing high keys and care for my score. Checking manually is sometimes a trouble when people have all these special characters in their names. And my own name is in Russian, that also creates issues for checking me. My only wish is that an addon should show more info like score for specific dungeon that the group is being made for, or, maybe, an average score for completed dungeons (ie if a player got a score for only 10 dungeons, but on high keys, it shows average only on them, so I can see a difference between a person who ran all dungeons but two on 18+ and a person who ran all of them but only on +15)