Some people have been preaching #SafetyByDesign principles. I would like to point out a huge problem with one of them.
Namely, the principle that profiles should be hidden by default.
This feature exists on Reddit right now. You know who uses it most? Dishonest people, who use the feature to conceal their history of dishonesty.
This allows them to do the same thing as the snake oil salesmen of the Wild West, going from town to town and running the same dishonest scheme over and over again.