That's exactly something someone would write on a plaque or stone to try to prevent people from stealing their valuables.
Proposed long term nuclear waste storage facility. Lots of big spikes tell possible future civilizations that this place is dangerous. The "this is not a place of honour" comes from a proposed message to be kept within the facility for any future archaeologists.
Can you imagine how much damage an atomic priesthood would cause? I bet after a mere 600 years it would have lost sight of its original purpose and would start going on holy wars to control nuclear sites and bring home nuclear relics, at best. And it would definitely try to gain power worldwide by fearmongering