I think building enough barriers, processes, and mechanisms might work. I don't think it needs to be human effort.

If it's not human effort, it costs tokens, lots of tokens, that need to be paid for by somebody.

The LLM providers will be laughing all the way to the bank because they get paid once by the people who are causing the problem and paid again by the person putting up the "barriers, processes, and mechanisms" to control the problem. Even better for them, the more the two sides escalate, the more they get paid.

So open source development should be more like job-hunting and hiring, where humans feed AI-generated resumes into AI resume filters which supposedly choose reasonable candidates to be considered by other humans? That sounds... not good.