They triple the points because they are reduced by a third each year.
It seems to me that the three year multiplier has it exactly backwards.
It works this way. Say you are cited for a violation worth five CSA points. The multiplier tripples that number on your record in the first year to make it 15. One year later, the multiplier is double for 10 points. The third year there is multiplier is one, giving you 5 points. At the end of the third year following the violation, the five points drop to zero. On a table it looks like this:
Year 1: 5 x 3 = 15
Year 2: 5 x 2 = 10
Year 3: 5 x 1 = 5
Year 4: Zero points on your record from that violation cited three years ago.
Now look at how the courts and justice system works. Steal a car, get probation. Steal another car, get probation again or maybe a little bit of time. Steal a car yet again and get a sentance stiffer than the ones before. Repeated crimes have bigger penalties.
With CSA, the approach is different. A first offense has the harshest penalty.
Good drivers with good records get no credit whatsoever for at least trying to be violation free or managing to keep their violations to a minimum.
Say someone begins with a perfect record (zero CSA points). Then say he or she gets dinged in May for a five point violation and eight months later for a two point violation. The multiplier treats that driver harshly, raising the total to 21 points.
Now say a driver with a terrible record begins with 50 points and gets similarly cited to add 21 points to his or her record for a total of 71.
Both drivers are treated the same when it comes to their violations, even though the second driver is a "repeat offender."
Would it not be more fair and more effective to reverse the application of the penalties such that if you have low points to start with, a few more are added on for subsequent violations. And if you have a lot of points to start with, the multiplier kicks in to add even more?