Legacy content has a habit of resurfacing through search engine caching, often...

https://www.sierrabookmarking.win/ghost-pages-and-stale-archives-aren-t-just-clutter-they-re-a-liability-that

Legacy content has a habit of resurfacing through search engine caching, often hurting your current site’s authority. When outdated pages reappear in SERPs, they confuse users and dilute your brand messaging