This post just seems like a fairly typical shit-tier take for this fandom, but I feel like it's pretty important context that this person is completely unhinged & is not worth engaging with even for drama. She's a known crazy in the Devil May Cry fandom. And when I say known crazy, I mean it. You can chat to someone & say something like 'this fandom is pretty chill except that one person' EVERYBODY KNOWS WHO YOU MEAN
You can find a post with a summary of her bullshit here (warning for a bunch of slurs & nasty stuff). More can be found in this tag here (though it might be easier to use the Archive link to view the tagged posts because there is A Lot).
(Note: derelict-stranger used to be thephantomporg84. When she changed her url, someone else in the fandom claimed it & put it to better use. So don't be too confused if you see someone referencing thephantomporg84 as being the one doing this stuff, or calling the drama llama Porgie or Porg.)
Don't even bother engaging with this person. Fandom is full of people with bad takes but who you can have an interesting discussion with. This isn't one of those people. Either block her or poke her with a stick & sit back with popcorn, but arguing or debating will get you nowhere.
I wouldn't be surprised if she has harassed people in asks or comments on posts - if she was happy to do that for an antagonist who was liked by a fandom, I'm sure she'd be even more keen on harassing people over antagonists where she knows she has wide support over disliking. So if you've received anon hate over Azula or Ozai, might be worth comparing it to her way of typing & seeing if you come up with a match.