"I really don't think submitting papers to similarly minded groups in the name of "peer review" is an uncommon occurrence"Yes it is. It's not just uncommon, it's simply unacceptable in regular scientific research. Don't believe me, here's Prof. Happer's own words:
Verbatim from William Happer's email:
"For example, Golkany knew the names of the reviews he received, but for a journal, the peer reviewers would normally be anonymous.
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Unless we decide to submit the piece to a regular journal, with all the complications of delay, possibly quixotic editors and reviewers that is the best we can do, and I think it would be fine to call it a peer review"
He knows exactly what he's doing is wrong and why. He's deliberately engaging in a a sleight of hand in order to deceive the casual reader/listener with the words "peer review".