They did make a rookie mistake. However, I know many FReepers have never made a mistake.
I read the article. I realize they make good money and it sounds to me like they’re not even really in financial trouble at this point. He just wants to be part of the “victim” crowd of the moment. It sounds to me like he still is in a position to avoid any real damage. But, if he is really so worried about what “might” happen to him down the road, he needs to quit spending money on vacations and fire the dog walker. I doubt there is anything in his note that says he can’t pay towards the principal balance if he wants to.
I sir have never made a mistake. I have however engaged in activities to later be used as learning experiences.