It is achieved through a never ending parade of self aggrandizement.
What Justine is very good at is presenting trivial concepts from a world which few front end developers understand in a language that most front end developers understand.
I had the misfortune of having to find out about her because of how thoroughly she polluted the google search space for lisp with her implementation of sector lisp. For some reason google decided that sector lisp needed to be in the top 5 results for every query about `minimal lisp with quotation` even when quotation wasn't implemented in her version.