Well, except for ransom attacks, nobody is forced to use a public cryptocurrency.

For it to be common and being proud of one's economic transaction history would be awesome.

In the 90s, experiments in publicity like reality TV and the Truman Show movie gave way to social media in the next decade. We are constantly finding new ways to publicize our lives because there is value in publicity.

Privacy shouldn't disappear absolutely but we've got a long ways to go towards greater publicity before reaching the limit of usefulness.