Earlier quoted context omitted.
Nope, it can be traced back to a random nickname on the Internet, using a computer somewhere in the globe.
That may be so, but it's usually been through code reviews, pull requests and whatnot - which means a maintainer somewhere has approved that code. In any case, "a random nickname on the Internet, using a computer somewhere in the globe" is a lot more information than none. Finding out that that's the case for a given project is part of traceability.
That information is meaningless if traces back to an empty room.