> avoid saving info so you can't ever leak it
I think that this is a good idea. It's similar to the principle of least privilege: keep only what you need to offer the service you are providing. Less risk for the provider, less risk for the consumer.
However, at least in the USA, I've noticed an increasing number of companies who have determined that personal data is worth good money. This is why most stores have rewards programs, where they capture what you've bought and when you have bought it.
If it was just about repeat business, they'd still be using punch cards, like they did a decade ago.
I don't have any insight into how they use the data, but why would they offer free things (restaurants offer appetizers, grocery stores offer discounts, etc) unless the value they received was more than the cost of the incentive?
I think that this is a good idea. It's similar to the principle of least privilege: keep only what you need to offer the service you are providing. Less risk for the provider, less risk for the consumer.
However, at least in the USA, I've noticed an increasing number of companies who have determined that personal data is worth good money. This is why most stores have rewards programs, where they capture what you've bought and when you have bought it.
If it was just about repeat business, they'd still be using punch cards, like they did a decade ago.
I don't have any insight into how they use the data, but why would they offer free things (restaurants offer appetizers, grocery stores offer discounts, etc) unless the value they received was more than the cost of the incentive?