THE QUESTION IS NOT WHO BUILT THE MOON BUT WHO COULD HAVE HOLLOWED IT OUT AND MOVED IT? AND HOW?

The Earth and the Moon were formed at the same time. Not the very same second, minute and hour but in the same time period.

But when the moon was formed it may have been in a different orbit to what it is now and may have been rotating around its own axis as well as around Earth so the same face of the moon was not always visible from Earth.

An extraterrestrial race could have arrived here, saw the potential for a spot of occupation to loot Earth's minerals, somehow partially hollowed out the Moon (but what happened to the material that was dug out?), and somehow moved it into its current very curious orbit.

Or it could all be just a massive coincidence.

Like that inverted, irregular and incomplete pentagram in the street plan of Washington DC.