What was the "tell" for you that makes you think this was AI-generated?

I started keeping my eyes open when the wrong season was given for the Bad Place spoiler (I see this was since corrected, and maybe the flow there was improved as well?). In the first sections the obvious tells were edited out (but the thinking still feels like AI), by its ends you have "The business was never aggregation, or saving, or hedging. The business is sucker farming: manufacturing a product whose counterparty is a retail customer who does not understand that he is the one being farmed. It could have played by the existing rules. It has decisively chosen not to.", and from there the frequency of LLMisms, uh, increases not linearly, but exponentially.

A lot of what else Stephen Diehl has published lately is more overtly slop, so it's a pretty safe bet.