There is a lot of cultural bias in this. Western society generally frowns on cannibalism because of foundations in the belief that the Dead will rise up again in the Apocalypse. Even if individuals don't follow that belief any more, there's still a certain amount of squick when it comes to eating or desecrating the dead.
Also, eating for pragmatic reasons (like preventing starvation aboard shipwrecks) is completely different from making a culture of it (some African and Oceanic cultures are the most oft cited). Cannibalistic societies often eat Human meat for ritualistic purposes. An example of a ritual is based on the belief that eating the person will confer some of that person's wisdom and experience to you (an extension of, you are what you eat). So, if you don't eat, you are basically dissing off the dead by implying they have no experience or their life was a waste.
As another example of empathy, most people have problems eating guinea pigs and chihuahuas despite the fact they were originally domesticated and bred as food in the South Americas (you can't raise large animals for meat, like cows, in a mountain range). They got turned in to pets in North America and the people there stopped eating them because of empathy.
Anyway, I'm down to at least try anything once or twice.
Edited by Belruel, 04 December 2015 - 05:30 PM.