Don‘t know where you are living but in the US this scenario of ‘there might be an authoritarian regime in the future’ has become reality faster than most people believed it could.
I like the idea, but they should have called it something else instead of ‚usename‘. Maybe ‚connection string‘ or ‚discovery phrase‘. Right now they have to explain at length in what ways it’s different from regular usernames.
I did not read the study, but the finding seems trivial and limited at the same time:
Anything you do to alleviate or prevent boredom that is not creative can be said to 'prevent reaping creative rewards' of boredom. Not just social media (or any media consumption, really) but also sports or calling a friend or helping in a soup kitchen. If you didn't do it, you'd feel boredom, and might pick up something creative instead.