I don't know. I'm not in his head, but I'm sure he had reasons. Crappy ones, but there's one guy here who likes playing with brains for funsies, so creepy, crappy reasons abound. I mean, yeah, Armand was the one vampire ever to kinda creep me out when he was drinking me, and I'd be fine with it if you were calling for revenge on him. Pointless since he's gone, but he might come back, and I get you having an issue with him.

With the super powered types, would you go after all wizards if one wizard hurt you? Or would you just go after the one who actually did something?

If a vampire does something, I'm all for punishing them, but it's that last part that bugs me. For one thing, you can't exterminate vampires, since they just come back here, same as you, so it would be endless revenge, and revenge for revenge, and revenge for revenge for revenge. And they aren't a threat just by existing, because most don't have the slightest desire to kill you. A lot are perfectly happy drinking the bottled blood.