Collier is a disinformer intended to ridicule Meier.
In the meanwhile, not everything is regular about the Pleiadeans. Their history is rather soiled with less pleasing events.
Pleiadeans are original earthlings. That is seldom mentioned by them. They have resided here since the days of Adam. Pleiadeans are known for their longevity. The first men, descended from this branch of evolution, lived for hundreds of years. These people have then been called Hebrews, Hellenists and Anglosaxons. People like Abraham, Plato, and King Arthur were Pleiadean. Atlantis was founded by them, to succomb in a cataclysmic event.
Uglier parts of their culture are obfuscated behind an image too clean. Some less pleasing parts of the Pleiadean character were already visible in our ancient times. In Greece, for instance, sexuality between older men and young boys was practiced. The Pleiadeans' bad aspects of character are characterial coldness (some call it surgical), cruelty, conceitedness, paternalism, pretence (some refer to it as excessive bluffing) and unfriendliness towards women's rights.
Pleiadeans reproduce by way of cloning and artificial insemination, which has a bad impact on their mentality. The awkward relationship with children and women may stem from that.
What is most untold, and could come over as shocking, is their vampiristic side. The legends of vampires come precisely from residing Pleiadeans on Earth. In general, vampirism (the drainage of energy from a victim) was practiced by nobility, which by itself is a Pleiadean heritage.
As for their famed 'spirituality', not too much should be expected of it. The Pleiadeans are indeed a 'godly' civilization, yet god is merely a designation of a high societal rank, not of spiritual divinity. God is a hierarchical term, called JHWH in their language (hence the referral to Jahweh here on Earth). A Pleiadean called God was an astronaut-scientist who genetically upgraded primitive humans to look more like Pleiadeans. Hence the advent of Adam and his descendants. The Pleiadean paternalism which shadowed over our evolution is of an uncertain legitimacy: spirituality, in the Pleiadean culture, is schewed. Spiritual evolution is merely a matter of electromagnetic wizardry there, not of spiritual qualities like insight, self-relativism, and altruism.