Secondary source
Google extends its spam policy to platforms that allow publishing shared pages, generated content, and web apps
Change detected on Google's policies page. The article quotes no spokesperson.
Source: Search Engine Journal, 28 oct (Roger Montti) — We did not read the full text of Google's policy.
Google added to its user-generated content spam policy the tools that allow publishing shared pages, generated content, or web apps. Platforms could face penalties for spam published by their users.
The guide recommends adding noindex or blocking in robots.txt sharing or collaboration pages that should not appear in search engines, verifying the site in Search Console to receive alerts about manual actions, and monitoring unusual spikes in pages or queries. The article notes that the guide does not announce a wave of penalties, and that the latter is the author's own inference.
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