First, this person is obviously stupid and will do great harm to their animal if they try this.
Second, I take offense to your comment "Hippies." Not all vegans are hippies and not all vegans want to put their ball pythons on a vegan diet. I happen to be a vegetarian slowly transitioning to vegan and I would never even consider putting ANY of my animals on a vegan diet. This person obviously does not care about their animal's wellbeing and hopefully they find the snake a new home before they kill it.