For one, it made horrible, glaring mistakes (like defining extern functions which dont exist, using functions which are specific to a platform im not using, etc.), stuff beginners would do.
It also decided to sneak in little issues, such as off-by-one errors (calling write() with a buffer and a size that is off by one in a place where its very hard to tell), missing edge cases (such as writing a C++ concept which worked, but actually did everything in slightly the wrong way to actually ensure the concept was requiring exactly what I asked).
Even when asked to correct these mistakes, it often struggled, made me read paragraph after paragraph of "im sorry, ive been such a bad little machine" garbage, and didnt even correct the issue (or, in some cases, introduced new bugs).
Im utterly unimpressed by this. GPT is great for a lot of things, but not writing code better than I would, in the same time.
The time it took me to massage it to solve a nontrivial problem (write hello world with just syscalls) was way longer than reading the manual and writing it myself (and has less bugs).
Not everyone unfazed by these articles is simply in denial. I feel sorry for people who write copy paste code and find that ChatGPT or Clippy from 2000 can relace them, but not everyone writes trivial code.