How do you know? Have you seen the code GP generated?
But if you're looking for success stories with code, they're easy to find.
I certainly didn't interpret "these types of posts" to mean "any discussion about code", and I highly doubt anyone else did.
The top-level comment is making a significant claim, not a casual remark about code they produced. We should expect it to be presented with substantiating artifacts.
So if we're looking for stories about LLMs one-shotting high-quality code, accompanied by the generated code, I'm less sure of where those examples would be!
There are just other comments on this thread that take as axiomatic that LLM-generated code is bad. That's obviously not true as a rule.