There are two types of people that hide: crooks and introverts.
Crooks hide their identity so they can profit off ambiguity. Introverts hide their identity because they enjoy isolation and quietness.
Most people live on a need to know basis. Living in dubiety frightens them. They need to know what you do, who your friends are, how you work, and what you do in your off-time so that they can feel more comfortable in their own lives. They fight to be understood.
The essence of being human is an uncomfortable duality of ‘rational’ technology and ‘irrational’ belief. We are still a species in transition. – J. David Lewis-Williams
A life full of holes scares most people. Look at artists like Banksy, Actress, and Burial – everyone wants to know who they really are. The irony is that they don’t hide at all but rather let their work speak for themselves. It doesn’t matter what they look like and what they say other than what’s already expressed in their work.
Anonymity and ambiguity are more interesting than conformity. Crooks, introverts, and artists want to be heard but remain misunderstood, mostly because they’re still adapting. An identity is elastic. Plus, the fun of mysteries is that they keep people guessing.