Fatboi isn't the first x-Witness to crash and burn. But he's one of the most dramatic. Mom had a file on someone from Vancouver B. C. who suffered a similar fate, but back in the per-internet days. He sent out printed letters and sought to have the Society banned in Canada.
Leaving the Watchtower does not mean one must leave good sense and morals. When that happens it's like a bounce back effect. I mean, they go from one extreme (the Watchtower) to another (morals, beliefs, etc.)
Probably none of what I've written above makes a bit of sense. I need another coffee.