O, I thing it's more a
kind of a competition between Xbox360 Live players:
To play their Xbox-games and find all achievements or at least at most points
But I personal don't find these achievements not important

... I go for the game itself, Divinity II, to fully enjoy this game
But for those who interessed it: I'm on Level 20 and I have now 215 points/1000 or something in that order

I play on 'easy'.