I saw conjecture on twitter (unfortunately I didn’t save the tweet) that they were targeting rudders because of the similarity to tuna fins. They hunt tuna by r

I saw conjecture on twitter (unfortunately I didn’t save the tweet) that they were targeting rudders because of the similarity to tuna fins. They hunt tuna by removing the fins, to prevent the fish fleeing, and the tweeter’s hypothesis was that they are using the sailboats as practice