Where did you get the impression that the author is an inexperienced developer and finance bro? The introduces himself as someone who started programming from the age of eleven.

I’m Michael Arnaldi, Founder and CEO of Effectful Technologies — the company behind Effect, the TypeScript library for building production-grade systems. I’ve been programming most of my life. I started at 11 with the goal of cracking video games. Since then, I’ve written code at every level: from kernel development to the highest abstractions in TypeScript.

Kent Beck does mention CodeRabbit, however he also highlights the benefits of pairing with humans, as he later goes on to say:

It’s not pairing. Pairing is a conversation with someone who pushes back, who has their own ideas, who brings experience I don’t have. CodeRabbit is more like... a very thorough checklist that can read code.

I’d rather be pairing.

I miss the back-and-forth with another human who cares about the code. I miss being surprised by someone else’s solution. I miss the social pressure to explain my thinking out loud, which always makes the thinking better.