Edited sentence: " Rand did claim a sort of trademark for "Objectivism," and warned her readers, "If you agree with some tenets of Objectivism, but disagree with others, do not call yourself an Objectivist; give proper authorship for the parts you agree with — and then indulge any flights of fancy you wish, on your own.Although this has been repeatedly denied and others have argued that Objectivism is not a cult because it lacks the structural organization that is a key feature of cults.Objectivism is not a mystic cult.Several authors, such as Murray Rothbard, who helped define modern libertarianism and anarcho-capitalism;, Jeff Walker, author of The Ayn Rand Cult; and Michael Shermer, founder of The Skeptics Society, have accused Rand and Objectivism of being a cult.The Biographical FAQ of the Objectivism Reference Center website, discusses these allegations and offer a letter in which Rand replies to a fan who wrote her offering cult-like allegiance by declaring "A blind follower is precisely what my philosophy condemns and what I reject.Walker compares it with  organizations that have been considered cults such as Scientology