I'm taking this into consideration. Right now the world is based around tribes.
In the future I can see where we can evolve the game to allow for this: individuals having alliances with tribes, paying for protection or simply finding a very remote spot to comfortably live as a hermit.
I can imagine a solo player building a camp and making a deal with the evil tribes so that they leave him alone in exchange for goods and services.
Or maybe a player with high level skills will be valuable enough for everyone that others will let him be.
These are the kind of questions I like to read to help us decide how the game will evolve in the future.
We'll see!