I have to admit, I still don't really get it either, at least not to the level it has gone. It's got to be excruciating for their loved ones to see people pretty much everywhere making fun of their likely death, regardless of the circumstances.
That's not me pointing fingers either. Full disclosure, I've found some of them fairly clever and laughed a bit. I also think it incredibly stupid to go down there in a homemade sub. But I still find the whole reaction to the situation a bit disturbing to be perfectly honest.