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.
Also, several YouTube comments on the video for "Stage Fright" suggest the witch might not have been a villain in the story at all... considering she admits to eating Hansel and Gretel's parents as opposed to the children themselves. You know, the people who willingly abandoned their children in the forest to starve/be eaten by wild animals.
Added to that, the story about the boy that the witch beheaded is likely just made-up since the twist is that the witch went mad from people telling stories about her eating children, she only eats adults.
A YouTube comment for the episode "Sick" suggested that the whole story was told inside the mind of a boy in the hospital with a terminal disease or in a coma [being represented by the unseen alien] and that the mom, the government agents, and the TV morning show hosts could be respective voices [of the doctors and his parents] trying to speak to him (or are speaking within earshot of him) while he was still unconscious note Think of that Futurama episode with Leela being in this coma from a Space-Bee sting then Fry telling her to "wake up" and you'll get the general idea. It would explain why this episode ended with a loud flat line and a white light, which can be reinterpreted as the doctors pulling the plug on the boy, but then again, the flat-line sound and the white light could be a special weapon used to wipe out human life, with the flat line being an appropriate sound effect for the boy's and his mom's respective impending deaths.
Whether or not Cassandra the photographer was really the evil one in "Headshot." Yes, it is heavily implied that she's the Devil and has been collecting the souls of young girls who want to be the face of Teen Teen magazine, but most of the blame can be put on Gracie and her pursuit to be famous. Cassandra even said that "Gracie has become what she's always been," meaning that Gracie, deep down, has always been shallow and willing to ditch her true friends should fame ever come knocking on her door, and for Cassandra, it makes it easy to collect her soul.
Base Breaker: "Le Poof de Fromage." Either it's a very stupid episode that's out of place with the darker, more mature episodes (and reminds people of the Narmy days of Goosebumps), or just a goofy, light-hearted Breather Episode to get people's minds off the depressing twist ending to "My Imaginary Friend" and get them ready for "The Golem" two-parter.
The season three episodes are either just as good as seasons one and two, or are a major step down from the previous two seasons.
Complete Monster: Lilly D, a doll with a soul, but a soul of evil. She attempts to turn Lilly into a doll and take her place among the family, and even before she set that plan into motion, she turns Lilly's mother against her to the point where she says to the doll "I wish you where my daughter" right in front of the real Lilly. She later returns seemingly redeemed due to the love of a new girl named Natalie, but later she turns out to be jealousy prone and attempts to drown a baby bird being nursed to health. Although that same night she gets what's coming to her.
Cassandra (the photographer for Teen Teen magazine implied to be the Devil) in "Headshot."
The witch in Stage Fright who told the audience that she didn't eat the kids in Hansel and Gretel isn't all that bad looking either.
The evil fairy (Lyria) in "Intruders"
Growing the Beard: Sure, it already started off good (kind of like Goosebumps for a new generation), but the "Scary Mary" two-parter at the end of season one is when the show got interesting. Even before then, episodes like "Catching Cold" and "Fear Never Knocks" showed how scary and interesting it could get.
Moral Event Horizon: Jake crosses it by leaving Will to die and appears to rub it in his face by dancing with Will's crush. Fortunately, the Sequel Episode will right this wrong.
Admit it, you hated Lilly Carbo's mother when she told her real-life daughter to her face that she loved Lilly D. more than her. She does realize the error of her ways when she nearly throws the Lilly D. doll in the trash and discovers that the doll is her (as it has the same mole as Lilly).
Lilly D crossed it herself by constantly framing Lilly, and manipulating Lilly's mom into liking her more than her flesh-and-blood daughter.
The entire episode of A Brush With Madness was one for Allan Miller, but only if you believe that Corey is trapped in Allan Miller's graphic novel, and not the theory that Corey isn't real and Allan Miller made him and the story up to vent his frustrations over going to comic book conventions and dealing with fanboys who don't understand the true intentions of his work.
Nightmare Retardant: The horrifying Christmas demon (known as a Krampus) that spits acid and is smart enough to blow up a house, just to teach a strained family a lesson on togetherness during the holiday season, is picked up by Santa Claus riding in a red SUV-limousine as hip hop Christmas music plays in the background. It's a lot funnier than it sounds.
The Photoshop effects of the demon in the photographs in "Red Eye", particularly the one that looks as if the Alp and Grace's father are best friends enjoying a day out.
The reveal in "Poof de Fromage" that the aliens that Jean-Louis is trying to destroy are just common Cheetos-style cheese curl snacks.
Paranoia Fuel: "The Walls," "Red Eye," "Sick," and "The Perfect Brother."
Some Anvils Need to Be Dropped: "Terrible Love," "Catching Cold," "Headshot," and "The Girl in the Painting" really hit it over your head that wanting more than what you already have has dire consequences (especially "Terrible Love" as Cupid himself tells Maggie that he's sick of humans always wanting more love, as he's seen people driven to jealousy, greed, and insanity from a hyperdose of his love potion and "The Girl in the Painting," as Becky paid for chasing an unattainable dream by getting eating by a dragon), but the moral is a relevant one and if it were subtle about it, many people wouldn't get it.
Though "Headshot" wasn't as heavy-handed in the "Wanting more than what you already have has dire consequences" moral. The main moral it touted is that "While it's easy to blame fame and glamor for bringing out a person's worst qualities, sometimes the person you call "friend" has Hidden Depths of being easy swayed by fame and willing to use and abuse others should the opportunity arise."
What an Idiot: The protagonist in Wrong Number. If you're being haunted by an old Russian lady who is haunting you and your mean girl friend because you crank-called her before she died, maybe it's best to actually be sincere in your apology. Otherwise, you'll end up trapped in your cell phone on a video file and deleted by the Goth girl — who turns out to be the dead Russian woman's grand-daughter — whom you picked on as well.
Scott from "Pumpkinhead". When you're threatened by a psychopathic farmer who doesn't want you near his creepy farm, you should probably do what he says. But Scott still wanted to go back even after finding a TOOTH in one of the pumpkins he stole from the pumpkin patch.
Maggie on "Terrible Love" when it's revealed that Stuart has hired Cupid to make Maggie fall for him. She should have run like Hell the moment she saw Cupid draw his bow, then again, she wouldn't have learned her lesson if she didn't get a taste of her own medicine.
What Do You Mean, It's for Kids?: This show is pretty much Goosebumps channeling Are You Afraid of the Dark? and Tales from the Crypt. Considering how censor-happy people can be these days when it comes to what they think children want, it's a miracle it hasn't been canceled or toned down.