I agree that we didn't have to watch it, but, if the author of the video didn't want us to say "what a terrible thing" or "thats awful" etc. then why post it, regardless of the fact he fore-warned us? Like stated earlier, when you label something as "graphic" it rises the curiosity and most of the time people are going to check it out. Its what we do. So far pretty much everyone has said they didn't like it (with a few exceptions who did like it...) so even though the person said it was graphic, that didn't stop anyone from watching it. Another thing, I agree with Yonsu on the comment about not feeling any ill feelings towards the author. I don't either but I do feel that he/she kind of set themselves up for this the moment they posted that video. I mean, you can't expect to put up a video like that first one and then not have people comment about it even though he/she said they didn't wanna hear the negative feedback about the video.
To Kingofthedeep, the difference is, if you buy a small feeder, chances are it will be killed almost instantly as it is just little and the piranhas and their mouths are considerably bigger, but when you buy the bigger feeders...well...lets put 2 and 2 together: big goldfish + small piranha mouth= more bites to kill = slower, more painful and not instant death. This is maybe not as efficient as using one big fish but, you could use 3 small feeders to equal one big one and you could still "make a nice meal" for your oscar or pirahna and it would be a lot less torturous. The smaller the fish, the less it takes to kill it, and when you have a big fish like an oscar and a small fish like a feeder it only takes one bite to kill it whereas a big feeder takes a few bites as shown in the pirahna video. We all know that fish eat fish in the wild, its part of the process to keep the fish population in order, same with wildlife, but leave that for the wild, we're humans and can find better ways of feeding our fish then to torture other fish. Just because they may eat fish in the wild, doesn't mean you can't supplement them with something else thats just as meaty.