There's a few publications that don't even do that though and archive.is is very good at bypassing them so I do imagine they use logins for those, but for the masses of sites it's not currently necessary.
Are you doing regular patching? Automated restarts? Watching for security breaches? Or just praying it stays up forever?
Otherwise, respectfully, I would not classify you as a "serious operator." Your site could live or die, and it would be all the same to you. Or, you've handed it to a third party for management and they don't offer much in the way of resilience or stability.