Good morning syzygy,
Effectively, there is still no information disclosed about the issue you are presenting us with, however i try within my knowledge and experience, to give you a simple explanation about the points in the dice.
They increase not only with time as the number of games played, but essentially with the frequency and diversity of games you play, however, if you are sanctioned with demerit for bad behaviour or infraction, points will be taken away from you according to the gravity of the infraction committed, or even if you don't receive them for a long time.
Regards
Dav7d