Chalk one up to the fans of FNAF: the initial teaser image for Help Wanted had to be removed because it turns out Steel Wool inadvertently used fan art, mistaking it for artwork from Scott. The FNAF art scene is getting so good, it's getting mistaken for canon.
Chalk one up as well to Steel Wool: they produced a level so scary Scott and his son Braden refuse to play it again. Scott instinctively threw off his VR helmet.
Scott doesn't say it directly, but it's implied that Steel Wool took the fact that Scott was unimpressed with the work-in-progress Funtime Foxy level as a personal challenge. They didn't have contact with Scott for three days, and when they returned, they had the finished level that scared the pants off of Scott and his son.
All throughout the Boiler Room maintenance, Ennard harasses you from every angle. If you make it to the end, the final step to drive off Ennard is to turn on the boiler. After it rumbles to life, you hear Ennard scream, this time in pain as it skitters away. For the first time in a while, you get to fight back against one of the animatronics directly.
In the "Bad Ending", William Afton - in the form of Glitchtrap - manages to pull a Batman Gambit by getting the player character to follow him, kill said player character, and take over the player's body. He always comes back, indeed.
The fact that in all three endings, Glitchtrap / Afton wins to varying degrees. Taking the form of an unstoppable malware, he defeats the player at nearly every turn. He hijacks your body if you beat the game normally, and whether you follow Tape Girl's instructions or no, he will not be destroyed and will come out either with your body, or quarantined but still very alive within the code when the game launches, which he holds over you knowing that Fazbear Entertainment will likely try to silence you if you warn anyone. The ultimate Morton's Fork.
In one interpretation of the "good ending", you can't delete Afton, but you can imprison him forever in the game; leaving him stuck on the wrong side of a locked metal door in his corporeal form, and in the form of an inanimate plush in the rest of the game. The greatest, most impossible to kill, serial killer of this universe - and now you can punch him in the face, or throw him around whenever you want, with utter impunity. It's almost worth being unable to properly finish him off.