I know that "PE + Life is meaningless worldview" are usually means that character hates, despises or at least look down at humanity but is there exceptions? The closest i can think of is Junko Enoshima since her spreading despair and misery around the world is an expression of twisted love. But even then "Humans are naturally cruel/prone to despair" rhetoric makes accent on humanity negative qualities and because of it she still can be counted as misanthope.
What do you think? I honestly can imagine a non-misanthropic nihilist as some mute villain who kill, torture and mess with people for fun and in the same time don't seem to care about injures or threats to their life. Because of they put sadistic fun above their life and health they can be counted as nihilist and becuse they're mute they can't express any misanthropic rhetoric. Maybe there is character like that and i just don't know.