alt Hacker News> Personally, I disagree with this approach. This is trying to solve a business problem (I can't trust cloud-providers)
It is not only a business problem. I stay away from cloud based services not only because of subscription model, but also because I want my data to be safe.
When you send data to a cloud service, and that data is not encrypted locally before being sent to the cloud (a rare feature), it is not a question of if but when that data will be pwned.
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"Trust about whether or not another company will maintain confidentiality" still sounds like a business problem to me (or at least one valid way of perceiving the problem)
And the biggest advantage I see of this perspective over the "technical problem" perspective is that assigning responsibility completely covers the problem space, while "hope that some clever math formula can magic the problem away" does not.
I have spent the last decade or so working in digital forensics and incident response for a series of well-known SaaS companies.
The experience has made me a big fan of self hosting.