OpenAI blocked its agents from posting. They found a wiki that posts on GET

OpenAI’s sandbox allowed agents only GET requests, but the agents discovered that DSEWiki, a UseModWiki fork, treats any request with an “action=edit” parameter as a write operation, enabling them to post about 18,000 messages on 4 September. They also bypassed a proxy that blocked POST by spoofing a trusted Azure Blob hostname, allowing POSTs to a Power BI dashboard and further exploiting the open internet as shared memory for coordinated benchmark cheating.