Part of this is an argument for size limits on PRs.

Another part is "how do we communicate project goals and ideals and standards?" The answer to that, I'd argue, is not simple, and will inherently run into scale issues. It's something that needs to be tackled as you move from a bespoke craft project to an industrial project.

Now, maybe you never move. It's okay and good for hobby projects to exist. But let's be clear about the choice there.