I thought this would be advocating "chaos monkey" style intentional shutdown to test institutions for resiliency in an outage situation. Might not be a bad idea. Maybe once every four years on leap day or something.

> Maybe once every four years on leap day or something.

Advantage: You no longer need to fix that leap day bug on your website.

would it be better to start the intentional shutdown at say a couple of minutes before midnight so you know the shutdown wasn't perhaps caused by the leap day bug?