Ask HN: Do you allow vibecoded submissions in your open-source projects?

This happened to me, and it's about to happen again soon.

Someone has submitted a 4k-line PR to one of my projects.

The person is a long-time user and is very enthusiastic about the app. They wanted a feature they've been asking about for half a year.

Not sure what to do now. I really want to help my user, but I don't like this code in my codebase.

This morning, I received another message from another user who is about to submit one more feature.

Is there any polite way to prevent that?