Let play through some scenarios. If you opt out, then there is not credit for you, so there would be no chance of a loan. Which is probably ok for people that decide against credit, but not for those that don't have enough savings stashed away where they need credit (car loan, home mortgage, etc).

Now if it is opt in, well then you have the issue of free speech. If someone takes out a loan and doesn't pay it back, why wouldn't the institution lending the money have a right to tell others about that (through a third party)?

If this isn't the case, where we have opt in by default, and it destroys the credit industry, that may also not necessarily be a bad thing. Because a lot of necessary items (housing, car ownership [for certain geographical regions], college) would fall in price to be more affordable if people couldn't get loans for them.

Of course, the real issue that most people have with credit reporting agencies is the fairness of a credit score or credit report, in that it may not actually reflect the risk of a given loan. This is an area where I feel they can and should do better. After all, if a lender is turning away customers that they shouldn't, then they are leaving quite a lot of business untapped. What would be better is if credit items were categorized based on credit type and circumstances.

For example, if you fall behind on sudden medical bills, but keep up on your mortgage and car payment, well that shouldn't affect your ability to buy a house or car on credit. In fact, if I was a car dealer I'd be happy to extend someone credit that treated their car payment as more important.

Or, if credit cards fell behind during an unemployment stretch. In that case if your credit report shows that payments pick up again as soon as you are back on your feet, then if I was a credit card issuer, I would lower interest rates during unemployment and only bring them back up a month or two after you got a job. And as long as the record shows that someone is employable (was only out of work during times of a down economy, but otherwise could hold down a job and make regular payments while working), I would think that they would be a good credit risk.

Another situation -- lets say you are a cosigner on a loan, and the person you cosigned for fell behind on payments, and you refused to pick up the payments. Well, that should only affect your ability to cosign in the future, but not anything else (assuming all other lines of credit are showing good).

So this is where I think that the market is ripe for disruption, in using extended information to bring in credit customers that are otherwise left behind by the current situation. But this requires much more tracking details