Flame Emperor Edelgard and WalrusGuy are the long-term vandal from the other wiki.
Him/her adding Ragyo's picture, wanting to remove Johan Liebert and adding the attempted baby-killer from Ice Age makes clear it's him/her again.
I'm suggesting to block them both as soon as possible.
Valkerone as well, right? Of course, that account got blocked too, thankfully.
This user turning up here again has been my big fear in regards to the Complete Monster trope, so I hope I can be forgiven for getting a bit overprotective and defensive due to being Properly Paranoid about such things...