The article doesn't rely on the author's own credentials at all -- it lays out a few pieces that came out under this Helmuth's watch and opines that those were pretty poor quality. It does not take a Ph.D to know that thinking the normal distribution is a racist idea, is a dumb take. His complaints about the trans-related stuff relies on logic (the article details the argument clearly and it's not an appeal to his own authority, only to logic).

The type of junk Helmuth allowed into Scientific American shows that the right-wing is not the only party who will amplify and push any nonsense that happens to agree with or support its pet causes, without the slightest regard for facts or real science.

> But what really caught my eye was SciAm's coverage of the youth gender medicine debate. This is one of the few scientific subjects on which I've established a modicum of expertise: I've written articles about it for major outlets like The Atlantic and The Economist, and am working on a book.

That’s the line where he flashes credentials that supposedly gives him credibility to critique SciAm’s coverage of gender health.

He makes the claim that SciAm’s progressive stance is dangerous to people. Wild claim from someone that hosts a podcast and wrote some terrible articles. What an expert.