One horror story could be about overly possessive fans. There were cases where some fans would attack others who didn't share the same 'ship' (relationship pairing) in the Hetalia fandom. They would send mean messages and create a very hostile environment for those with different opinions.
There were also instances where fans took the fictional politics in Hetalia too seriously. They would start real - life arguments based on the in - story national personifications' relationships. This led to some very heated and inappropriate exchanges, with people forgetting that it was all just a fictional and satirical take on international relations.
I heard that during some fan events, there were arguments that turned physical over which character was more important or which storyline was better. It was really disturbing to see that a fandom which was supposed to be about enjoying a fun anime could lead to such aggression. People were shouting and pushing each other, all because of differences in their love for Hetalia.
Well, there was a 'fandom horror story' in the gaming fandom. A player was so into an online game that he believed he was actually a character in the game. He started to act out the game's violent scenarios in real life, which was really terrifying for the people around him.
Perhaps a story where a character is being haunted by the ghosts of all the lives lost during a major historical event related to their country. These ghosts keep tormenting the character, making them relive the pain and suffering over and over again.
One of the 'Hetalia Horror Stories' could be about a character getting lost in a haunted version of their own country. They might encounter strange apparitions that resemble historical figures in a distorted way, which adds to the horror as they try to find their way out.
The 'European' aspect of these fanfics also enriches the fandom. It helps fans to better understand the different European cultures that are represented by the Hetalia characters. For example, a fanfic might describe in detail how a character's behavior is influenced by their 'national' culture in a European context. This can lead to more in - depth discussions and a greater appreciation for the Hetalia concept among fans. Moreover, the exploration of gay relationships can break some traditional relationship norms in fan works, making the fandom more inclusive.
One Hetalia in real life story could be cosplaying as the characters at a convention. Fans dress up as their favorite Hetalia characters, like Italy or Germany. They interact with other cosplayers, recreating the fun and diverse relationships from the series. It's a great way to bring the Hetalia world into real life.
One horror story could be about a really intense shipping war within the Homestuck fandom. Fans of different ships were so aggressive towards each other that it created a really toxic environment. People were sending mean messages and threats just because of their preferred character pairings.
There are horror stories where the magic in Equestria goes horribly wrong. Like a spell that was meant to do good but instead creates a nightmarish dimension where ponies are constantly in pain and fear. This is terrifying as it shows how the very thing that usually brings harmony can be so destructive. Also, stories about ponies being haunted by unseen forces that slowly drive them mad are quite common and spooky.
In the Steven Universe fandom, there were also instances of fans gatekeeping. They made new fans feel unwelcome if they didn't know all the details or hadn't been in the fandom from the start. This made the fandom seem like a hostile place for some, which is a horror in its own way as it goes against the spirit of a friendly fan community.
One interesting 'Hetalia Horror Stories Fanfiction' could be 'The Haunted Embassy'. In it, the characters experience strange and spooky events within the embassy that seem to be related to the dark history of the nation it represents. Another might be 'The Cursed Portrait', where a portrait in a historical building starts to cause chaos among the Hetalia characters.