The key problem is that traditionally, OSS contributions were self-selecting. Basically, to create a PR, you had to be invested in the project. To create a contribution of value, you had to understand the codebase, the conventions, engage a little with the project, and generally the folks doing it are doing so because they like the project, or because they are scratching a specific itch they have etc.

What AI unlocks is contributions from folks who are not at all involved in the project, and creating a PR is no longer enough to clear the gate of “this person is at least somewhat interested in the success of the project”.

AI is a force multiplier when wielded properly, but as an OSS maintainer, it’s easy to drown in prolific, low value “contributions” from folks who don’t care about the project.

Exactly. People rediscover that gatekeeping and barriers-to-entry had positive aspects to them.