It's 90% criminals and illegal activities. I'm a libertarian, but plenty of libertarians have tin foil hats on. A tin foil hat wont help us with understanding investments, it will just hinder our world view.

Privacy while I like it, and while this may be an attractive feature for .0000001% of the world population, it is not a compelling use case in and of itself. Tracking people would be a more compelling use case for investing because we could get corporations on-board and it would cause the price to skyrocket. Privacy, wont ring the buzzer of most people out there. It's an idealistic goal, not really something the every day person wants to achieve in their life. It's way, way down the list of priorities on the Maslow hierarchy of needs.

Certain countries? Sure I guess. They should just grow some balls and get a better government instead of using passive aggressive, hard to use crypto to do it.