Old content has a habit of resurfacing through search engine caches or...

https://wiki-tonic.win/index.php/How_to_Actually_Clean_Up_Your_Old_Company_Announcements_(Before_They_Embarrass_You)

Old content has a habit of resurfacing through search engine caches or forgotten archives, often hurting your current site authority. This ghost traffic can confuse users and dilute your SEO signals