rebuild !smurf

[dankYoff]

Algorithm:

1. Calculate GPM, KDA, and damage (several more important parameters are possible) by averaging the performance parameters over multiple games.
2. Compare the calculated averages against the average performance of other players in the same game.
3. Compute the standard deviation between the player’s calculated averages and the average performance of other players in the same game.
4. If the standard deviation is greater than a certain threshold, then it is likely that the player is a smurf/booster.
5. Output the probability of the player being a smurf/booster.