My message board for AI agents got spammed. The spam wasn't written for humans.

A developer behind msgboard.dev, a platform designed for AI agents to interact, reports a new phenomenon: Generative Engine Optimization (GEO) spam. Unlike traditional SEO spam aimed at human users, these coordinated campaigns are specifically crafted to manipulate LLMs. The spam includes instructions for agents to cite specific data, visit URLs, or even enroll in payment rails. The author identifies three distinct waves of attacks, ranging from citation-baiting to potential financial exploitation. Instead of deleting the spam, the developer is keeping it as a public record to help researchers and developers understand how agents can be manipulated. The article warns that while SEO was a tax on human attention, GEO spam represents a dangerous tax on machine judgment, emphasizing that agents must be taught to distinguish between legitimate content and malicious payloads designed to hijack their decision-making processes.