This seems like a pretty uncharitable take, and one thats unlikely to be true.

Do you think substack has some metric on "unsubstantiated opinions" that they're trying to maximize? Or have you just noticed more content that you disagree with there?

> A focus on contrarian writers with unsubstantiated opinions

These are also features of Medium, maybe most blogs. Being discerning is also a required feature of the internet, regardless what one might dream of, imo.

Substack exists because someone launched a very different business model than Medium. They also have a program where they pay prominent people advances to switch (https://on.substack.com/p/why-we-pay-writers).

Greenwald's Medium is still up. He just never really used it. https://medium.com/@ggreenwald/almost-nobody-reads-these-pos...