There is kind of a theory, going on, if you read the discussion...
If you manage to grind enough to gather over 1000 of a certain trait, it might show up again in our character. It might be that it only shows in multiples of 1000.
So, if you get the score of a trait above 1000 points, it could show a "+1" on that trait. Possibly, if you grind enough score to get a trait up to 2000, it could show "+2" on that trait.
There are no guarantees, though, and you'd have to do the same thing hundreds of times for it to make a difference, for example.
I don't think that anyone tested it, though. It would be very difficult to test it without modding the game, as well...
Might be better ask Taleworlds to fix it or just wait. Maybe some brave modder will take care of it, in the meanwhile