Facinating. I like how the dude is just chillin like "it's cool, I'm not sinking." He could also be like "HELP! I'M SINKING" and then when someone gets up to him he can be like "just kidding."
I theorize that the reason most of the people that sink their ships regularly might tie in with the same types that as kids liked to destroy their toys. Most toys I had that broke was from normal wear and tear, but every now and then there was that neighbor kid I'd get playing with and soon my airplanes had missing wings, firetrucks with missing ladders, a ditch digger with no shovel, GI Joes with missing limbs, collection of Transformers that look like a scrap metal heap, and there's a Chuck Norris action figure still Missing In Action in a creek in Kansas since 1989. I don't know if I'll ever recover him now, but maybe an archeological expedition will discover him in a few hundred years. I'm not even going to go into what horrors occur to toys around the 4th of July. Fireworks + toys + kids on sugar high = World War 3.
So, probably there are those that like to end every mission sinking their ship. There are some that do it occasionally, probably as a stress relief. I've intentionally done this a few times when I first got the game just to test the limits, see what happens. But for a game that takes longer to set up and load than other games I've had, I don't like to waste too much of my time on this. I've also done this with flight and train sims. But now I save my destruction for that other ship game.