The reason this is terra nullius is because the river has moved that land around for centuries, and will continue to do so. That border attempts to follow the r

The reason this is terra nullius is because the river has moved that land around for centuries, and will continue to do so. That border attempts to follow the river but the river doesn't follow diplomacy. These people who take advantage of this fact are very short sighted and mostly bored middle/upper class kids.