I'm sure that serial killers don't think twice about chopping people up into little pieces, either. That still doesn't make it right.
...And while I understand that y'all feel that a HUMAN life is totally different from any other animal's life, I don't.
To me, killing is just wrong, and I avoid it if at all possible, regardless of the "level" of life that is involved. I feel bad when I run over a squirrel, would rather catch the bug and put it outside than squish it, and avoid shooting things or suffocating fish in the icebox... Regardless of where their place is on the food chain.
What I see in most fishermen and hunters isn't a "need" for food - what I see is a "desire" to kill something. Makes them feel macho. I mean, what other rationale is there in spending hundreds of thousands of dollars on a boat and tackle and fuel and countless hours of hard, nasty work to catch something that can be purchased at your local fish store for a few dollars a pound?
It's the "thrill of the chase." The thrill of killing something.
Personally, I don't find any pleasure in chasing something ("stalking") and killing it. I believe I've formed this opinion based on my interaction with the creatures as I dive underwater.
Similarly, dog-owners can't fathom eating dog for dinner. I just can't understand why anyone would ever love to fish, especially after spending so much time and effort (and money) to keep their own fish alive - as I assume the posters of this forum do.
As I said before, I hope that the person who enjoyed the interaction with the Whale Shark decided to stop killing fish. I hope the experience affected him that way.
...Now, how that hope would offend someone, I have no idea.