The snapshot is made available for customers to give feedback on. It has not been tested as heavily as a production release, but it should be fairly stable. Please reply to this thread if you have any feedback.
As @Admin states, hashes are widely used in a variety of areas. By and large, their use is non-controversial, but when they are used for ‘pseudo-anonymisation’ of personal data their use is far more complex. This is the process used if an organisation provides personal data to some third party. It was adopted because it can give ‘identity’ without being ‘identifying’ . So if anonymized data was sent to a third party from, say, your doctor, the third party could recognise that two keys in separate records of 97c8e6d0d14f4e242c3c37af68cc376c were the same person, (‘Dan’) but not (allegedly) who you actually are.
However, that’s actually not really true … in the unlikely event you were ever interested i this, see https://mosaiceffect.com/
Yes. Even if nominally indentifying information (such your social security number) is anonymized it maybe possible to identify you using other non-anonymized information, e.g. a combination of your age, ethnicity and postcode might be uniquely identifying.