Squatter to guard abandoned house

Today I read about an strange concept to deal with abandoned houses. There is a dutch company, called camelot, who does legal squattering to save abandoned houses from vandalism and real squattering. One can for example live in an childrens hospital and pays a ridiculous low rent. If somebody lives in the house, the chance of vandalism sinks, so they say. Official, the inhabitant does not live there for the sake of dwelling. He is officially a guard, that lives in the object he guards.