The number of roles she's been ghosted on after the interview, she says, is "insane." Not a rejection, not a follow-up - silence that runs all the way up to the day she was supposed to start.
Her coping move is to keep asking them for the onboarding paperwork right up to that start date. They still will not answer. She is not asking why they changed their minds. She is asking them to process the paperwork for a job they never confirmed she had.