This is a great point.
Also if you think about Bonus point systems it's even crazier in some ways...
For instance at like year 10 you might have 100 people out of the top point pool being taken out of the running because collectively their cohort might hold 25% of the total tickets. So at year 10 you might be like "oh bonus points kinda work we are clearing out people"
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but then as the years go along, because you are letting some people at lower levels have tags, the system slows down profoundly with people with max points getting drawn at a much slower rate.
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And this is with a pillared point pool same year after year, it's a mountain in reality 5000 at 0 points 10 at top. Basically meaning that every year you are in a bonus pool your odds are probably getting worse in reality because for every squared point you gain 3000 folks are joining so at 40 bonus points your still losing ground to the onslaught of newcomers.
So who wants to buy points?