I agree the insurcance score is useless however I don't think its based on your driving record nor do they claim it is.What
I would like to note that insurance scores are not nonsense, I personally used to design them for auto insurance companies. Typically an auto insurance (or any other type of) score focuses on three general areas, ones average severity of claim, ones average propensity to file a claim, and propensity for fraud. An auto insurance score almost never looks at ones driving record and instead looks only at data that is available from consumer reporting agencies, more specifically credit reports. There are actually a lot of papers on the topic of credit history use in insurance underwriting, as the practice is relatively new (started around 1990).
Here are just a couple items that I can guarantee are used in more than a handful of auto insurance scores. There are quite a few other things that are looked at, but these should at least be somewhat interesting.
How recent your most recent auto trade was opened - If you have new cars, they have more expensive repairs on average and are less likely to be total losses.
How recent your last derogatory item occurred - People with derogatory items are positively correlated with risky driving behavior and with propensity for fraud.
Number of Late payments - This can be related to a few factors, but a couple of groups correlate this with Non-Payment Cancellation risk, in addition to more risky driving behavior.