It’s totally about personal satisfaction. We need to “scratch an itch.” The thrill we get from “getting away with it,” is also a big part of the equation.
Many stories are embellished, along the way, by people involved in the oral tradition. Some, become almost unrecognizable, after a few generations. These folks often do it, to “add spice,” for entertainment value.
I’ve come to learn that most folks that “front,” are often doing so, in order to personally feel better; not harm others. It’s not healthy, but often, doesn’t result in much harm to anyone else. I’ve learned to relax, when I encounter it, and sometimes, even enjoy it.
Very many folks have terrible self-esteem, and develop coping mechanisms, which can sometimes be quite destructive, but, more often, are just energy sinks.
I have learned to be cautious, though, and not take things at face value, which can be difficult, if I don’t want to become a bitter cynic.