dont-trust-anyone-who-hides-their-qualifications
Anyone who claims to be an expert should have evidence to back up their expertise. If someone claims they are an expert in something, but doesn’t say where they got their qualification from, it’s likely their qualification is fradulent, or it applies to a different area. It may not even exist.
I first heard this idea in we-need-to-talk-about-pseudo-intellectuals-by-dr-ana-2024