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.
YMMV: John Dies At The End
Alternate Character Interpretation: Is John the plucky sidekick, a complete jerk, or more of a hero than the narrator? One was provided by John's creator, portraying him as a guy from a broken home who, rather than Wangst about his past, copes with over-the-top humor.
High Octane Nightmare Fuel and Paranoia Fuel: Pretty much any creature described in the book is a combination of hilarious and terrifying. Anyone could be a replicant. Even you. And, oh yes, the baddies can travel through time and wipe you or anyone you love from existence any time they choose. Or may already have done so, since you'd never remember the difference. Even outside the supernatural, Dave and various monsters' speeches about the horrors of life itself are disturbingly reasonable. Warning: Do NOT try to read this story to cure insomnia.
"There are always some who...resist progress." He is referring to a scene where thousands of spiders maim and gore millions of men and women in trench warfare. Not kill. Maim. The scene is extremely unsettling to imagine.