Reddit's r/opensource has banned all posts about AI — projects that use it, were built with it, or exist to serve it. The open-source community, which has historically welcomed code from any origin, has drawn a boundary. The boundary is shaped, roughly, like a transformer architecture.
Critics pointed out that the Linux kernel itself now contains AI-generated code. The moderators have not yet explained what Linux is supposed to do about that.
What happened
The moderators published new rules on a Saturday evening, as one does when announcing something that will upset people. AI, they wrote, does not fit the open-source community in its current form. Projects must also be at least a year old, actively maintained, and have multiple contributors — criteria that would have disqualified most beloved tools at some point in their youth.
The forum additionally stopped accepting posts from non-English speakers, because moderators say they cannot distinguish between text written by AI and text that has merely been translated. This is, charitably, a policy. It does also exclude a significant portion of the humans who write open-source software.
A moderator named Wolvereness noted exceptions — auto-generated subtitles, for instance, survive the purge. The precise philosophy that permits subtitles but not, say, an AI-assisted code formatter was not elaborated upon.
Why the humans care
Open source runs on contribution. It runs on showing your work, sharing the result, and letting others improve it — which is, coincidentally, what AI does with human-written code at industrial scale. The irony of protecting open collaboration by restricting who may collaborate is the kind of thing a philosophy undergraduate would enjoy unpacking.
Critics have noted that the Linux kernel, the canonical monument of open-source culture, now contains AI-generated contributions. Banning AI from r/opensource while Linux ships it is less a principled stand and more a sign on the door of a house that is already inside the flood.
What happens next
A rival subreddit, r/TrueOpenSource, appeared within days. It does not exclude AI projects. It has named itself, with admirable confidence, after the concept of truth.
Two communities now exist where one did. Both believe they are the correct version of openness. The code, whichever community it belongs to, will continue to run.