Summoned up the courage to inform the author about Amazon's Anti-Manipulation Policy for Customer Reviews. I've screenshotted the author's response. *headdesk*
"I got sick of looking at it" - SO STOP LOOKING AT IT! No one's forcing you to sit on Amazon, reading and reacting to customer reviews.
I was willing to give her the benefit of the doubt, but since she's doubled-down on her stance... Well, she's not sorry, so there's nothing to forgive. *shrugs*