There seems to be a misconception going around that creepypasta monsters need to be unbelievably powerful, unstoppable, invincible, immortal, etc. to be scary and that they must
Meet Worm Jeff. He's none of these.
He's fragile. He's weak. He tires easily. You could kill him by stepping on him. And he's cute as hell.
And yet he's utterly terrifying.
How? How could something this weak and adorable possibly be threatening?
See for yourself: Bio Infection Journal Series Bible One Door Closes, Another One OpensEvil Never DiesTrust Me, Part 1Trust Me, Part 2
See? There are ways to make pasta monsters scary besides making them overpowered or "unbeatable." In Worm Jeff's case, I made the monster nearly defenseless on his own and requiring other, stronger creatures to do the dirty work for him (with lots of Paranoia Fuel and mind-fuckery thrown in for good measure.) While I agree the "Lovecraft" route can be good if done right to induce a sense of helplessness, people shouldn't rely on it ALL the time. If you overuse it, it can start to feel like...well, this.
Jeff the Killer (c) creepypasta
Worm Jeff (c)
(In "Randomness" instead of "Worm Jeff" because I'm still sorting the WJ folder)