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Developer argues four years of LLM adoption has not improved software quality, cost, or security
Why it matters — The essay is one developer's account rather than a controlled study, so it cannot by itself settle whether LLMs improve software work. Its weight comes from the author's vantage point: he maintains open-source libraries used by FAANG companies and so sees the steady stream of LLM-generated pull requests and vulnerability reports. For working engineers, the post is most useful as a checklist of failure modes to probe against their own workflows before accepting the productivity narrative.