well i hope that guy is a veggie, i mean, who says we should cultivate chickens and cows for us to eat, why noy snakemeat and bears.
I personally would only feed feeders if the fish needed it, but even then its only because i wouldnt want to run the risk of parasites from feeder fish (tho apparently we cant have feeders in the uk?!?!?)
also the rice paddy fields in asia give off almost the same amount of methane gases as that of the termites.
also if i ate loads and loads of feeder snakeheads, would it be as good for me if i just ate one adult?