The KISS Vampire War came about when vampires tried to get Gail fired for being mean to the band KISS. She had been making various ridiculous jokes about the band and the fact that Love Gun is about a wang, and their disapproval really didn't make her stop because seriously now. Vampires. Soon, the vampire group (who she claimed was led by Vampire Dave) was claiming their 20,000 followers all were giving Gail the side-eye, but she claimed a werewolf group (led by Werewolf Steve) totally had her back. This led to some hilarious lines and one vampire apologizing because the others gave vamps a bad name. One vampire, claiming to run a company that represents celebrities, said she was contacting Twitter's legal team. There was also at least one call made to Gail's employer in an attempt to get her fired, although it is uncertain if this was the same vampire.
In the end, the scourge of the undead appeared to have either lost interest or they were distracted by a remastered release of Destroyer or something. Either way, they have largely left Gail, the Vampire Annoyer alone since.