As someone who is at least slightly existentialist, authenticity seems to be my natural state (he said, modestly). That really is a picture of me pretending to be an avatar, for example (though slightly artified). There are people on the forum who have dialogued with me in the past, and know that my thoughts tend to be the same all of the time. They also know that when I make an error, and it's pointed out to me, I'm the first to acknowledge it and incorporated this into my thought. On the other hand, if you just tell me I'm wrong and don't bother providing some evidence of how I erred, I am far more likely to retain my opinion regardless of your objection. I like to flatter myself that this is because I've actually thought hard about what my opinions are, and why I hold them.