DataStores Migration Packages for the Berezaa Method and DataStore2 Module [Public Beta]

I am one of those a bit confused. I have always just had one datastore per game (idk if its called an experience, or universe or whatever) And it was always keyed by playerid.

However recently I started to add leaderboards, and the way I learned to do that, is to have an ordered datastore per leaderboard, so if I am keeping track of 10 traits to put on leaderboards, would that mean I would be likely to hit the new limits? How would you do leaderboards?