These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Broken Base: The Ending of Silent Ponyville 3 was not received well, and even the writer himself said he had bit off more than he could chew and wasn't really happy with it either, and wasn't sure if he even could've ended in a way he was happy with due to how things played out. Mainly caused by Spike being Killed Off for Real and Twilight growing to hate Celestia after finding out she's a Retired Monster
Complete Monster: The serial killer the Colt who targets foals and butchers them alive, eating them afterwards. He even feeds a unknowing Pinkie Pie a Cupcake made from her own little sister, whom he killed right in front of her.
Whenever Lance listens to his memories of his wife, half-locked behind doors with the number 303 in the apartment complex, a loud ringing in his ear cuts the voices off and catapults him out of the memory. It's likely his subconsciousness's attempts to keep him from remembering.
Jerkass Woobie: Lance Strongshy of Silent Ponyville 2 has traces of this, but this is brought out more in Reunion.