Health data, medical records, even research data, is very scarce in the public domain. This is not just due to so-called privacy concerns, but because such data could have generated “value” (and been sold at a good price) long before the emergence of large language models.

I think it's quite alarming that people don't even think about the privacy when sending their health data to corporations which make a large percentage of their revenue selling the data onwards (or using it to things you didn't mean them to).