"the junior engineer, empowered by some class of LLM tool, who deposits giant, untested PRs on their coworkers—or open source maintainers—and expects the “code review” process to handle the rest."

Kind of depressing how it has become such a trope of blaming juniors for every ill or bad habit. In all likelihood the reader of this comment has a number of terrible habits, working on teams with terrible habits, and juniors play zero part in it.

And, I mean, on that theme developers have been doing this for as long as we've had large teams. I've worked at a large number of teams where there was the fundamental principal that QA / UA holds responsibility. That they are responsible for tests, and they are responsible for bad code making it through to the product / solution. Developers -- grizzled, excellent-CV devs -- would toss over garbage code and call it a day.