Well, it could be a crossover fanfiction that has no respect for the lore of the different franchises. Let's take a crossover between 'Supernatural' and 'Buffy the Vampire Slayer'. If the fanfiction ignores the established hierarchies of demons and vampires in both shows and just throws them together randomly. Also, when the crossover is just an excuse for the author to self - insert their own Mary Sue - like character who is overpowered and overshadows the real beloved characters. For example, a new character who can defeat all the monsters in both universes without any real struggle, making the story boring and untrue to the original shows.
Often, there's the theme of self - discovery. In 'the worst witch crossover fanfiction', characters are put in situations outside of their comfort zones. For example, Mildred Hubble might find herself in a world where her magic is not as powerful or is seen in a different light. This forces her to reevaluate who she is as a witch and grow as a character.
Well, it could be a fanfiction that just has really unlikable characters. In the Hunger Games, we expect characters to have some depth and motivation. But in a bad fanfiction, they might be just one - dimensional. Say, a character is only mean for the sake of being mean without any backstory or reason. Also, if the fanfiction is just a copy - paste of other stories with a Hunger Games skin slapped on it. Like using the same old plot devices from other popular franchises but just changing the names to fit the Hunger Games. That would be a sign of a really bad fanfiction.
The worst Harry Potter fanfiction could be the ones that are clearly written just for shock value. For instance, having beloved characters die in really cruel and senseless ways that don't add anything to the story. It's just there to be edgy and grab attention. Also, if the fanfiction author doesn't understand the magic system in the Harry Potter world and creates some really inconsistent and illogical magic rules. It breaks the immersion for the readers who are familiar with the well - thought - out magic system in the original books.
One aspect could be bad characterizations. For example, if the fanfiction completely misrepresents the core traits of beloved Game of Thrones characters like Tyrion being turned into a bumbling idiot instead of the intelligent, complex character he is in the original. Another reason could be a poorly constructed plot. Maybe it has a convoluted and illogical storyline that doesn't fit within the world of Westeros. For instance, if it suddenly has dragons flying to a modern-day city, which completely breaks the established fantasy setting.
A worst Harry Potter fanfiction might be one that contains non - consensual or inappropriate content that goes against the family - friendly nature of the original books. But aside from that, it could be a fanfiction where the author clearly has no understanding of the world - building in Harry Potter. They might add elements that are completely out of place, such as modern technology that doesn't exist in the wizarding world. The dialogue could also be very stilted and unrealistic, not at all like the natural conversations we see in the original series. And if the fanfiction just seems like a lazy attempt at cashing in on the popularity of Harry Potter without any real creativity or passion, it would be considered among the worst.
Well, one reason could be the complete disregard for the established Pokemon lore. For example, giving Pokemon abilities that are completely out of character or making them behave in ways that go against their known natures in the official games and anime. Another aspect could be the poor writing quality, like having a lot of grammar and spelling mistakes that make it really hard to read and enjoy. Also, some might make the plot overly complicated or just really dull, not capturing the essence of what makes Pokemon interesting in the first place.
A good crossover in fanfiction often has well-matched characters and worlds that blend seamlessly. The storylines should complement each other without feeling forced.
One popular 'the worst witch crossover fanfiction' might be the ones that cross it with 'Harry Potter'. In these, characters from 'The Worst Witch' might find themselves in Hogwarts, leading to all sorts of interesting scenarios. For example, Mildred Hubble could befriend Hermione and they could study magic together, comparing the different types of magic in their respective worlds.
One trope is the 'instant love' between characters from different universes. For example, in a crossover of 'Twilight' and 'Percy Jackson', Bella and Percy meet and fall in love immediately without any real development. It's unrealistic and just a lazy way to create a relationship. Another bad trope is the 'power - up' of a character for no reason. Say in a crossover of 'Dragon Ball Z' and 'Naruto', Naruto suddenly gets all of Goku's powers and can defeat any enemy with ease, ruining the balance of both series.
The worst fanfiction often has really poor grammar and spelling. It might also completely misinterpret the original characters' personalities. For example, making a heroic character act like a coward for no good reason.