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NoChatGPT, Cursor · 30 Dec 2025

Throw a non-trivial codebase at any AI tool and watch as it utterly destroys it, introduces lots of new bugs, add massive amounts of bloat and, in general, makes it incomprehensible and impossible to support

robomartin on Hacker News

In the thread “The 70% AI productivity myth: why most companies aren't seeing the gains”

Helped: Selecting small chunks and manually integrating after careful checking.

Got in the way: AI destroyed code, introduced bugs, and added bloat.

… Without understanding anything is possible and bad outcomes are almost guaranteed outside of the trivial. Throw a non-trivial codebase at any AI tool and watch as it utterly destroys it, introduces lots of new bugs, add massive amounts of bloat and, in general, makes it incomprehensible and impossible to support. I ran a three month experiment with two of our projects, one Django and the other embedded C and ARM assembler. …