I read the grandparent comment's point as being about suggesting %-based fines.

> prove your claim by providing some evidence that the richer you are the more speeding tickets you get.

How/where did the grandparent comment claim that the rich get more speeding tickets? Even if the rich speed at a lower rate, would that make %-based fines a negative improvement?

> a problem that doesn’t exist

My assumption was the speeding is a problem no matter whether rich or poor, and that both exist. Is there disagreement there?

Instead, I think their point was that even a $100 fine for a poor person may impact their ability to pay for groceries, childcare, etc, whereas for someone who has $10 million, etc., even a $1,000 fine will not impact their ability to pay for groceries, childcare, etc as they still have $9,999,000.