Nobody wants to review AI-generated code (unless we are paid for doing so). Open source is fun, that's why people do it for free... adding AI to the mix is just insulting to some, and boring to others.
Like, why on earth would I spent hours reviewing your PR that you/Claude took 5 minutes to write? I couldn't care less if it improves (best case scenario) my open source codebase, I simply don't enjoy the imbalance.
Why do you care how much effort it took the engineer to make it? If there was a huge amount of tedium that they used Claude Code for, then reviewed and cleaned up so that it’s indistinguishable from whatever you’d expect from a human; what’s it to you?
Not everyone has the same motivations. I’ve done open source for fun, I’ve done it to unblock something at work, I’ve done it to fix something that annoys me.
If your project is gaining useful functionality, that seems like a win.
Because sometimes programming is an art and we want people to do it as if it was something they cared about. I play chess and this is a bit like that. Why do I play against humans? Because I want to face another person like me and see what strategies they can come up with.
Of course any chess bot is going to play better, but that's not the point