[Qayin]

If you see there are problems in "how they kill dolphin", I absolutely agree with you. You can kill any animals you wanna consume as long as the number is reasonable (not kill so much that they gonna extinct.). But to consume them, if you could, you should do it in more humane way.

My opinion is to eat or use dolphins' organ, it's OK (but make sure they're left enough to reproduce and survive)

But please do it in a more humane way (not some cruel method like skinning they alive, boiling them alive or throw them to the fire alive. Oh, even prisoner execution is more humane than this)