2) Conforming with a majority of people's opinion about something being the "greatest of all time" when you might not fully understand why.
Person #1: DUDE! Snickers is the greatest candy bar of all time.
Person #2: That's strange. I could have swore the other day you said Kit Kat was the greatest candy bar. What made you change your mind?
Person #1: Well, I read a Rolling Stone article listing the 500 greatest candy bars of all time. They placed Snickers as number one. OMG SNICKERS IS THE BEST BECAUSE THEY SAID IT WAS. NOW I THINK IT'S THE BEST TOO
Person #2: Oh God, you're suffering a bad case of Sgt. Pepper's Lonely Hearts Club Band.