Stale, forgotten content often resurfaces through search engine scraping,...

https://www.bravobookmarks.win/it-happens-to-every-site-old-irrelevant-pages-start-ranking-again-hurting

Stale, forgotten content often resurfaces through search engine scraping, hurting your current site’s authority. When outdated pages reappear in search results, they confuse users and dilute your SEO efforts