I think 'Harry Potter Hell Spawn Fanfiction' might be centered around a very particular subset of fan - created stories. It could be that some fans are exploring the darker aspects of the Harry Potter world, like what would happen if Voldemort had managed to create some sort of unholy abomination. It could also be about exploring the afterlife in the Harry Potter universe in a very dark and untraditional way, perhaps with 'hell spawn' - like entities emerging from the depths of some dark magical realm.
I'm not sure of specific examples as there are so many fanfictions out there. But it could be a story where a character creates a new form of dark magic that gives birth to some sort of demonic - like creatures that are the 'hell spawn'. Maybe a fanfiction where Hogwarts is overrun by these creatures and the students have to fight them off in a much darker and more brutal way than in the original books.
Spawn fanfic is basically fan - made fiction about Spawn. You know, Spawn is a really cool and complex character from comics. Fanfic writers might take the dark and gritty world of Spawn and add their own twists. For example, they could write about Spawn having a different origin story or getting involved in a new battle against some otherworldly foes. It's all about taking the existing Spawn lore and expanding on it in a way that the original creators might not have thought of.
Spawn fanfiction is fan - created stories based on the 'Spawn' franchise. It can include new adventures of Al Simmons (Spawn), different takes on his relationships, or exploring uncharted parts of the Spawn universe. Writers use their creativity to expand on the existing lore.
Spawn comics have indeed come to an end. The decision to end it might have been based on various factors such as creative direction, sales figures, or the story reaching a natural conclusion.