So the idea is that when you are making a new match making queu you can select a leaderboard and the matchamking will get that players leaderboard value as an attribute.
This would be expecialy usefull for games with ranked play where the match making must use stuff like MMR(match making rating) to find players of similar skill.
Idealy in the Attribute soucer you would select "leaderboards" and then in the path you would just put the name of the leaderboard you want to you.
I think this ties very nice with what you are working on right now (road map says leaderbaords v2), this would be definetly a very nice addition to that.
