[huitzitziltzin]

It’s not possible to release data in all circumstances. If you work with health data (I have worked with birth certificates, EMRs, inpatient discharge abstracts, drug prescription histories and other data) you can’t post it publicly. You have to promise not to include a table in the paper with a cell size of fewer than ten individuals!

For what it’s worth, the Trump administration attempted to make issuing new health and environmental regs harder by requiring public data disclosure. They did this entirely because they knew that much of the data could not be disclosed. So if you were studying, eg, the effects of some pollutant on a health outcome using private data, you wouldn’t be able to rely on that study in a regulatory context bc the data could not be published.

It’s a worthy idea, but there are exceptions for good reasons.