"The best book I've ever read was Atlas Shrugged in 8th grade. Changed my life." Not because I remember anything about it, or believe anything it espouses, or even like it all that much, but because it's a useful filter for obnoxious people in meatspace. If someone I don't know too well asks me what my favorite book is, I say Atlas Shrugged. If they react inappropriately, I'll be cordial and treat them with respect,…
As an aside, it kind of seems like Atlas Shrugged actually is your favorite book. You don’t appear to care what others think about Neuromancer or The Dying Earth but you literally require a specific and narrow set of feelings about Objectivism to pass The Test. (And obviously, it is the feelings that you mandate, not the lack of social graces, as you have noted that you don’t mind if others politely stop talking to you even after passing The Test. They do not feel positively enough toward Ayn Rand and as such are not worthy of your time)