Interesting debate that seems to have gone viral. If we start condeming 20 yo old scuba divers for brash and stupid statements and exhibiting bravado that comes with being 20 something, please don't make it retroactive, I fear that scubaboard would be greatly and rapidly depopulated.
A few years ago I had the audacity to question the advocacy by major dive shops and boat operators in Socal that "monster bugs" be brought to the surface, photographed, and released back into the wild. As it turns out, this is a major campaign complete with poster in nearly evey dive venue etc. And since diving for lobsters is even legal in most marine protected areas, that distriction does not really help the lobster. Taking a lobster does cause stress to the animal, although the exhibitor does get some kind of boost to the ego from having his picture taken with the lobster. I was not prepared for the response that I got defending the practice.
So, except for consumption, what is the difference between what this young man did and the catch and release (or take and torture as some Alaska Natives refer to the practice)? GPO is a charismatic megafauna representative of the NW, is that what is fueling the indignation? From what I understnad, few giant lobster are taken without a struggle, damage, and stress and turning a crustacean into an air breather seems particularly cruel, at which point killing and consuming it is an anti-climax. Or is this part of a larger anti-hunting effort (I will not use the term "anti-sportsmen" since the post harvest conduct was hardly sporting). One diver's passive enjoyment of wildlife does not mean another's active harvest wrong, just different.
If you are going to havest legally, take what you can eat and eat all you take, otherwise leave it alone.