I was mostly referring to the hearsay of self-proclaimed experts you can read on internet boards...where ppl tend to depict real world experiences as hard "facts". So before quoting someone on his personal perception of audio equipment, hear it for yourself. I'm sure everyone here has already bought audio gear based on raving reviews, and ended up falling flat on his face(for me, it'd be the Pro750 and the Musiland 02US). We do all hear differently, and have different expectations too.
Well, he's mostly talking about measurements which are far more important than anecdotes or even your own subjective personal experience in an area as muddled and prone to cognitive bias as this. These aren't headphones where differences are obvious enough to smack you in the face. Much more care than sighted listening is required in order to draw meaningful conclusions. Here's something related that I just posted in a different thread.
Feynman is full of awesome quotes, but this one is especially applicable.
"The first principle is that you must not fool yourself, and you are the easiest person to fool."