File this under the category "people are f-bomb-ing idiots".
I wouldn't be surprised if social media was spreading this technique as successful way to fish.
idiots? this is clever af. maximum fish for limited effort.
the coral is a tragedy of the commons things; it's a sweet deal for lazy fisherman.
My first encounter with the concept of bomb fishing was the Shapoklyak episode of the soviet cartoon Cheburashka, produced in the 70s. It's been around.
It IS a successful way to fish if you care about feeding your kids tonight, and not in 10 years.
Fishermen were doing this in Indonesia decades ago. Pretty well known technique.