I fully agree with catch-to-eat, and I realise that spear-fishing is more selective than line or net.
Its the choice of target that I'm questioning, and that thr photos are posted on a SCUBA site. The biggest possible fish to be a trophy, rather than dinner. One of the photos in question has many fish, more than a good meal.

I'm sure that the shark-finners in Asia would say that they'd kill a whaleshark for a good meal (shark fin soup).
Or what about Japanese and Icelandic whaling? They're eating the meat, and claim to be selective... so that makes it ok?
I've seen more dead sharks in restaurants in Egypt than I have in 500+ dives there.....should they post photos of their shark trophies here too?

I just think the photos are bad taste (pardon the pun) for nature lovers.