For the vast majority of these issues, certainly including those mentioned here, simply testing before going live would make them beyond clear. So it's simply a bad developer likely working under bad management and, shockingly enough, producing a bad outcome.

LLMs will be an interesting test of the current broken systems at most large companies. You can literally fire your entire engineering team and replace them with your "really smart" cousin and Claude. And that's going to be mighty tempting when the MBA mantra seems to be that cost reductions this quarter are infinitely more important than any potential costs in the future. But of course they're not.