When legacy pages reappear in search results, it usually signals that archived...

https://www.tumblr.com/weepingmountainzealot/811815072754204672/why-do-old-legal-notices-get-scraped-and-reposted

When legacy pages reappear in search results, it usually signals that archived content has been crawled or indexed unexpectedly. This clutter hurts your current SEO authority and confuses users. Don’t just let it sit there