That's their kryptonite. They know what an IRB is but their lack of working knowledge of IRBs compared to reputable medical scientists is their weakness.
Was thinking of @gorskon.bsky.social wrote last year about quack James Lyons-Weiler.
www.respectfulinsolence.com/2024/02/14/a...
James Lyons-Weiler announced that he is creating his own IRB. Its real purpose? Likely to provide cover for unethical antivax studies.