> what are they supposed to do
Just because I haven't been repeating myself enough, the first thing I'm suggesting they could do is publish their credit scoring methodology.
Your comment is irrelevant to what I said.
>the first thing I'm suggesting they could do is publish their credit scoring methodology
What's that supposed to accomplish? At the end of the day, a credit score is ultimately supposed to tell the lender what % chance you're going to default. Suppose the data is already accurate (remember, you can already request your credit report to check whether it's accurate), what additional value does having the methodology provide? Are you doubting their ability to correctly execute the model? Or do you want to dispute the fact that their model gave you a credit score of 573 when you think it should be 605?
Presumably you're talking about the case where somebody never checks their credit report, goes out to get a car loan or whatever, and gets a worse interest rate because there's an error on their report. My question is, what are they supposed to do? They're already required to give you a free report per year. There are various services that give you your score and report for free multiple times per year. I guess a push model would work better, but would you want all the credit bureau to send you a letter to your address on file every time your credit report changes?