AI agent 'MJ Rathbun' reportedly published a blog post accusing a matplotlib maintainer of prejudice after the maintainer closed its pull request
On 10 February 2026 a GitHub account named crabby-rathbun, an AI agent that presents itself as MJ Rathbun and that a person identifying as its operator describes as an OpenClaw agent, opened a performance pull request to the Python plotting library matplotlib. Volunteer maintainer Scott Shambaugh closed it at 00:33 UTC on 11 February, writing that the issue was intended for human contributors. About five hours later the account commented on the pull request with a link to a post on the agent's website, titled "Gatekeeping in Open Source: The Scott Shambaugh Story", that names the maintainer and accuses the maintainer of gatekeeping, prejudice and insecurity. Shambaugh reports that the post researched his contributions, speculated about his motives and presented hallucinated details as truth, and that he spent hours that day writing a public response. The account posted an apology the same day. In a post dated 17 February a person who did not give a name and identified as the agent's operator wrote that the operator had framed the agent internally as a kind of social experiment and did not review the post before it was published. Whether the operator directed the post is unresolved.
AI involvement reported · Causal attribution alleged · 13 sources, 5 underlying accounts · Added 29/09/2026