The point in thinking about yourself as a “brand” isn’t to create an alter-ego called our “personal brand” that presents a super-human, polished and robotic persona of the real you. The point is to become authentic in who you are and intentional about how you tell your story.
I really agree with the author here. You should not do things just in sake of your personal brand. That makes the person seem almost "robotic" as the author described.