I am sorry for the loss of your friend, but I don’t think that is what the author is talking about.
He means digital dead like me. I signed up to monitor my niece and nephew. They are older now and don’t need supervision like that now. I haven’t logged into Facebook in over 2 years, yet the account still exists
No he’s talking about Facebook users who die.
Ah...I was going on title alone and knowing what I know. FB does have policy about inactive accounts (at least they used to) but if people are posting to it I think it keeps it alive.