https://www.blog.google/technology/safety-security/updating-our-inactive-account-policies/Google in their infinite wisdom have decided to purge any YouTube videos from accounts that are inactive for more than 2 years. So if you have a chuuba that you loved that is dead who left their channel intact better start archiving it because there's a high chance it might get killed by next year. Unless you know for a fact they'd be schizo enough to kepp logging on to the account.