Google's John Mueller issued a direct public warning about programmatic SEO in a September 7 thread: generating thousands of low-value pages — iterating on domain names, product attributes, or geographic locations — "often leads to a site that's either spam, borderline spam, or low quality," with the consequence that "our systems have possibly lost faith in your site providing good value to users based on the old pages." Mueller compared recovery to recovering from a manual spam penalty: slow, difficult, and not guaranteed. Site-level trust loss affects all pages — including high-quality, original content that existed before the thin pages were added. The GEO dimension reinforces the stakes: AI search engines, including ChatGPT, Perplexity, and Google AI Mode, draw on the same site-quality signals that inform organic ranking. A site that Google's systems no longer trust for organic results is less likely to be cited in AI answers regardless of the quality of individual articles. With many marketing organisations having used AI writing tools to scale content volume over the past eighteen months, the window for identifying and addressing site-trust damage before it compounds is narrowing.