>>progra+o5
The term "hacker" describes someone skilled at tricking systems into doing what they can't. Mitnick was not only one of the first popular hackers he also had many famous exploits. His arrest was a major rallying cry for the hacker community at large (now known as the overly corporate "infosec community"). There's no redemption arc. You do not need to do what society considers "good" to be considered righteous.
There's no such thing as objective moral and ethical good. To me, Mitnick is a hero deserving of the highest praise. He inspired myself and many others to get started in this world. It may be difficult to understand if you didn't come into computers in the late 80s/90s.