When legacy content unexpectedly resurfaces via internet archives, it can...

https://www.scribd.com/document/1016381165/Why-Do-Old-Content-Problems-Show-Up-at-the-Worst-Possible-Time-205018

When legacy content unexpectedly resurfaces via internet archives, it can confuse your audience and damage your search rankings. This often happens because cached versions persist long after you’ve updated your site