Regardless of how insecure pickle is, it is the perfect module to learn how easy basic data-persistence can be in Python through serialization. I don't get articles like this, maybe it's cause I'm still learning a lot, but I don't see the value of posting some inference a module or library already explicitly states in the manual or documentation.

Regardless of my opinion, pickle is a great module to get you going in Python and even better for scripting and storing basic data-sets on your local machine.