Interesting that the author flags what is actually one of my pet peeves ...

> [Snapshots] get created automatically, often during deletion workflows, and nobody thinks to look for them.

creating random backups of things you are shutting down "just in case" that you must then remember to go back and delete. It's especially annoying if you stood up an EC2 instance or whatever, realized you messed up the configuration and immediately shut it down. Now you have a pile of poop running up your bill that you need to find and delete.