>I'm particularly disappointed with arXiv/academia, because in other fields like biology and CS/ML/AI, published papers tend to be of higher quality than your average blog post.

You should really google up something called the Gell-Mann amnesia effect. 99.9% of everything is shit. Including biology, CS, ML and especially "AI."

Of course trading papers are even more universally shit, but once in a while someone publishes a non obvious to me risk factor.