I like your idea on this although the issue then is that servers would end up with construction in the "easier" zones to the point that newly joining players could not build unless they joined one of those tribes if those tribes are even recruiting. That is positive and negative. You get the two people who form a tribe and pillar off an entire zone greatly reducing the server population which helps with reducing a server latency and flooding the server, but can also limit game quality by creating a forced alpha tribe purely due to their greed not through accomplishments in ark. So I do like your idea although I think ide like to see it more structured similar to the way it is currently where easier/less agressive dinos towards the beaches and more dangerous dinos the more inland you go.