We definitely haven't been writing completely correct code in the past. But even so, the code LLMs write has more issues than the code humans write.

This seems to be changing, in the year of heavy LLM use that I’ve done.

When I started, I had to review every line, and frequently found bugs, but lately, I’ve been impressed with the quality of the code. I don’t think that I’ve had to make any code-level adjustments, in a while.

Do you have any analytic basis to make that assertion? I haven't found that to be true, it'd be more accurate in my experience to say that LLM code has different issues than the code humans write.