I don't feed live feeder nor do I recommend anyone to do it. As soon as I got my Jardini the first thing I did was get him off live feeders as the rule in my tank is eat what I give you or die. Others have a different view on this, some even believe live feeder to be the holy trinity of food. That is their choice and they can feed their fish what they choose. But it is not until I see videos that I get annoyed, killing of another creature should be done by need not for pleasure. It is when this line is cross that the person is doing something majorly wrong. If you have friends over and drop a fish in to show them how cool you big fish is when it eat another fish, or film it to get it viewed on the internet it is the same, thereis something wrong with you. Tryng to justify displaying the eating of live feeders with 'its natural' doesn't float well with me either, glass boxes are not natural.
Lastly, I would like to add that it is not the young who do this entirely. But rather all age groups, it is a type of person not age of person.
Lastly, I would like to add that it is not the young who do this entirely. But rather all age groups, it is a type of person not age of person.