As a PhD dropout myself, I understand entirely the decision of these students to distance themselves from what were obviously negative experiences for them.

Unlike those listed in this article, I actually ended up staying in my field of study for work, but psychologically it has been very difficult. When I'm confronted with situations that reminded of what could have been if I had finished my degree, I sincerely wish I could find a new career like these people, so different from my current one that I could finally leave behind those feelings of failure and inadequacy that grad school left me with.