Yeah, there's effectively no limit to how much code that you can have.
We're all guilty of copypasting from Stack Overflow, but as you said, that's not made to order. In order to use the code copied from there, you will likely have to edit it, at least a bit to fit your application, meaning that it does require a bit of understanding of what you're doing.
Since ChatGPT can be completely tuned to what you want without writing code, it's far more tempting to just copy and paste from it without auditing it.
We're all guilty of copypasting from Stack Overflow, but as you said, that's not made to order. In order to use the code copied from there, you will likely have to edit it, at least a bit to fit your application, meaning that it does require a bit of understanding of what you're doing.
Since ChatGPT can be completely tuned to what you want without writing code, it's far more tempting to just copy and paste from it without auditing it.