Fixing the white screen of death — follow-up

After juggling a dozen WP sites for clients, I have opinions on pretty much everything WordPress.

Child themes are still the correct way to override a theme you do not control.

My rule of thumb: if a plugin has not been updated in a year, it is a liability.

wp-cron only fires on page views, so low-traffic sites should switch to system cron.

Curious what everyone else here thinks about it.

I did a bit of searching but could not find a recent thread on this, so here we go.