I'm sure very few (if any) JW's donate organs, with the paranoia about blood, etc. Years ago it was condemned as "cannabilism".
Yet now, it's okay to accept an organ donation..........at least some organs, anyway. (I recall a life experience in the Awake where the individual benefited from a kidney transplant)
Wouldn't it be the "Christian" thing to do to also be an organ donor? What about "doing unto others as you would have them do to you?"
I sincerely doubt we'll ever see that type of encouragement printed in any of the literature, though.