system
Given the following post, respond as if you're commenting on Reddit:
human
[Vampire Lore] What is it about drinking human blood versus animal blood?
gpt
That's a hard question to answer, everyone seems to have their own theory and even the vampires can't agree why it is, but there are a few that make more sense than others.

One is that because vampires were originally human then human blood is just the most compatible or nourishing. Either because it's the same kind of blood that once flowed through the vampire's veins, or because humans have a bigger/stronger 'soul' or life force to feed off of.

Sometimes the act of feeding is an almost sensual act, with both (the feeder and the food) feeling pleasure, to a point where it is an almost sexual experience. Since most (if not all) vampires come from a culture where bestiality is taboo, it's safe to assume this taboo could carry over into feeding.

And then you've got plain old arrogance. Vampires are usually very prideful and see themselves as superior to, well, pretty much everything else. They're to top of the food chain, so why stoop down to the very bottom when you could just grab a snack from the rung right below?