For me, I would much prefer that nothing can be taken apart from the very basic stuff and maybe go a little further and say some stuff / buildings are only available to the Dev's, (for me at lest) this would keep exploring the world a lot more exciting and enjoyable, to come across something that is just new and different to see
If I was not able to loot all this stuff then I don't see any point in exploring. Looting is one of the key features why survival games are popular at all.