I think this "various algos" are just a score barrier (now at 500) because every time I past this score I get the red bull message. I have to lose before 500 to get pay.
Currently they are based not only on the max score, but even on the score / time from the last score and the players average rewards so that the threshold is dynamic. Once the score is saved in the DB there is a second layer of controls trying to identify cheating players before the reward. Everytime you experience a reject of a score just send an email or tell us in the discord channell and it will be added.