I just read over this entire thread and have some problems;
1) I am sick and tired of seeing people blame the young, immature members.
Seriously get over yourselves, it is not the young who are feeding live feeders but rather all age groups. Targeting one age group instead of a type of person instantly flaws your argument IMO. This is because you obviously have no idea what you are talking about. Either that or you are one of these arrogant old people who believe you know best and the young are stupid.
When I bought my Jardini the store owner (mid to late 40s) explained how they
MUST be feed live feeders, I (21) explained they
MUST eat what I give them or they
WILL die. Live feeders are not on the menu in my house.
2) It is natural for fish to eat live fish, but that is in their natural environment not in a box. Using this argument as self defense in this type of argument i pointless, you will all ways get the same response. Read the start of the paragraph.
3) Feeding live feeders is not wrong, if done correctly. It should not be done purely for viewing pleasure, if you enjoy watching your fish chase down a feeder, good for you. It is not until you video the act and advertise it as some awesome thing that you're doing something morally wrong IMO.
4) Species of the live feeder doesn't change a thing (this hasn't come up in this thread, but I have seen it before
http://www.monsterfishkeepers.com/forums/showthread.php?t=65795&highlight=goldfish) The size of the fish and swiftness of death is what counts. Nothing else.
5) Filming your fish die for the purpose of a snuff film is wrong, I, along with others, have always said this.