Imagine that you’re a journalist looking to anonymize a source. How do you do so responsibly?
You could just come up with a name off the top of your head. But this will be affected by your own personal bias. You may even end up choosing a name that is subtly influenced by the name of your source.
You could use a random name generators on the Internet. But such generators draw from a general list of names, which may not be representative of the age and sex of your source. Thus, such randomness comes at the cost of accuracy.