Right ...Kind of wacky , yes ...But the Japanese can be very eccentric ...The love gimmicky stuff like this . Fads come and go with the change of the weather . Harmless stuff ...
If you are in the right place at the right time, you can engineer one of these “booms” and then, make a lot of money off of such a “boom”.
Was it Japan that did the theme restaurant based on the NAZI Concentration Camps, complete with Swastika flags?
I’m pretty sure it was an Asian country. There was enough of an outcry that the owner closed it down.
The U.S. isn’t much better. There was an S&M/Bondage themed restaurant in New York. I don’t know if it’s still open.
I really thought the apocalypse was nigh when somebody convinced Americans to buy rocks and have them as pets. But that too passed.