I'll look out for your piece. I don't doubt paper mills target high impact journals, but I would have thought it harder to get through at some journals than others. I deliberately didn't include things like CNS in that list, but journals where I've been on both ends of the editorial process.
Having recieved reviews and seen the reviews others recieve (as a fellow reviewer) and how the editors handle them. I might even know some of the editors. I'm sure it's not foolproof, but I can't believe the rate of milled papers is as high as such venues as some others.
I agree, rates of milled papers in high impact journals are likely to vary. As milled papers get "better" and more convincing, their numbers could rise in "better" journals. Thinking "paper mills happen to others, not to us" seems like a mistake. link.springer.com/article/10.1...