Has anyone tried doing that without LLMs? Could you make a GitHub repo under MIT license and just let people add a list of ideas to serve as prior art?
Corporations have long had house journals where they publish inventions they didn't patent, just to ensure no one else patents them. I think AT&T in particular had one of these.
Patents can cover generalizations, not specific implementations. If it were the latter we wouldn't have all these obnoxious software patents.
However, a specific implementation in prior art can prevent a generalization that includes that specific implementation from being patentable. As a result, patents tend to become more and more specific over time, hemmed in by prior art.