One possible scenario could be a battle scene. The machete is swung with great force, cutting through an enemy's flesh, and as a result, blood sprays out. It might be a fight between heroes and villains, where the machete - wielder is trying to protect someone or something.
It adds a sense of realism. By vividly describing the blood spraying out from the machete, it makes the fight or violent scene seem more tangible to the reader, as if they are witnessing it. For example, 'The machete sliced through the air and into the foe's side, blood spraying out like a crimson fountain.'
I'm afraid we don't have enough data to determine the creator. It might be someone who is really into a specific genre or fandom and decided to create this fanfic. There are so many fanfic writers out there, and without more context, it's impossible to point to a specific person.
Since we have no information about the specific fandom it might belong to, we can only guess. Maybe it's a fanfic where a character has some sort of special power related to blood and has to face a threat in the form of a worm - like creature. Or perhaps it's a more symbolic story where the 'blood' represents family ties or heritage and the 'worm' represents a corrupting influence that this heritage will eventually expose. But again, this is all speculation without further details.
For a 'Prince of the Blood' fanfic to shine, it needs to capture the essence of the original world while adding fresh elements. Good character interactions and an engaging storyline are key.
From 'Blood In Blood Out', we can learn about loyalty and its limits. In the story, characters have strong loyalties to their gangs at first, but as the plot unfolds, we see that loyalty can be tested. Also, it teaches us about the impact of the prison system on individuals. It shows how people can change or be broken by the experience of incarceration. Moreover, it gives an understanding of the social and cultural factors that contribute to the existence of gangs and the cycle of violence in certain communities.