In reply to Louis Reingold.

Louis Reingold,

Auto-upgrades are bad in my opinion. You always risk when you update a plugin/theme/core of breaking your site.

Also, when the auto-upgrades occur. What if it's middle of day? It could be 2am in your timezone, but it is always 9am-5pm somewhere thus the site going on maintenance mode while the upgrading occurs can be bad for business.