Well, it combines the usually bright and colorful world of My Little Pony with horror elements. It's like taking something familiar and friendly and turning it into something that can send shivers down your spine. For example, seeing the cute ponies in terrifying situations or facing dark, otherworldly threats.
One interesting MLP horror fanfiction is 'The Haunting of Ponyville'. It creates a spooky atmosphere where strange things start to happen in the otherwise cheerful town of Ponyville. The characters are put in terrifying situations that are quite different from the normal, happy - go - lucky scenarios in the regular MLP world.
Once upon a time in Equestria, there was a dark and spooky forest. One day, Fluttershy wandered into it by mistake. As she walked deeper, the trees seemed to close in around her. Strange whispers filled the air. She saw shadowy figures that looked like distorted ponies. Fluttershy was terrified and tried to run, but the forest seemed to be alive and kept blocking her way. She finally found a small clearing, but there was a creepy old shack. When she entered, she saw a figure with glowing red eyes in the corner. It was a pony possessed by some dark magic. Fluttershy managed to use her kindness magic to break the spell and escaped the forest, but she was forever haunted by that experience.
The distortion of the normally cute and friendly ponies is quite scary. When they become menacing or possessed - like, it's a big contrast to what we expect from MLP. For example, seeing Pinkie Pie with a blank stare and a menacing grin instead of her usual happy face.
There was a story where a mysterious figure haunted the Everfree Forest in the MLP world. It would make strange noises at night and ponies who ventured too close would disappear. The remaining ponies were filled with dread, not knowing when or where this figure would strike next. It was like a shadowy nightmare come to life in their idyllic world.
The unique thing about MLP FIM horror fanfics is that they take the usually bright and cheerful world of My Little Pony and turn it on its head. It's like seeing a completely different side of the characters we know and love. For example, Twilight Sparkle, who is usually associated with knowledge and friendship, can be portrayed in a much darker and more vulnerable way in horror fanfics.
I'm not entirely sure specifically which 'the cough mlp horror story' you mean. There could be many horror - themed stories related to MLP (My Little Pony). It might involve some dark and disturbing elements within the MLP universe, like a spooky character with a cough that brings about some sort of terrifying events or changes to the otherwise colorful and friendly world of MLP.
One common element is the distortion of the normally bright and colorful Equestria. For example, the once - beautiful landscapes can become dark and foreboding, like a forest turning into a menacing place full of hidden threats. Another element is the corruption of the ponies themselves. They might be possessed by dark magic, like in the story where a pony's eyes glow red and they act in an evil way. Strange and unexplained disappearances are also common. Ponies vanishing without a trace creates a sense of mystery and fear. And often there is an external force of evil, such as a dark wizard or an ancient curse that causes all the horror to unfold.
The contrast between Fluttershy's gentle and timid nature and the horror elements is what makes these fanfics interesting. It's unexpected to see her in such terrifying situations.
Well, MLP as a brand doesn't have a consciousness to 'watch' fanfiction in the literal sense. But its fan community is quite large and active in reading and writing fanfiction. So while MLP itself can't watch, its fans surely do read and enjoy fan - made stories.