Just like you probably don't grow and grind wheat to make flour for your bread, most software developers don't write every line of code in a new project from scratch. Doing so would be extremely slow ...
Open source has always had issues, but the benefits outweighed the costs/risks. AI is not merely exponentially accelerating tasks, it is disproportionately increasing risks.
Slop’ pull requests from LLMs are deluging maintainers, and you can generate small utility functions on your own in seconds. The open source world is grappling with AI.