To your question Conch, I will answer "yes."
I originally started my Main Story, "Equestri Noir"
, as a rather simple fantastic noir about a jaded knight in sour armor detective named Bogart Maltese
who was tasked with investigating, and subsequently stopping, a dangerous cult based in Ponyville called "The Crux Nato," all the while dealing with the death of a partner at that same cult's hooves, and the steadily darkening world around him (which was already dark as is, due to Equestria being slightly crap-sack world with no princesses and two world wars, the second one just barely ended).
Bogart himself was a vet of the previous war, and despite having fought on the side of the baddies (The Regime in-story) was a stallion that deep down wanted nothing but to do what was right. It would have dealt with him coming to terms with his past actions, accepting his present route, and embracing a future that while uncertain, could be shaped into something bright.
Somehow, that story morphed into one where Bogart Maltese ended up cursed by a vile corruption thanks to the Crux Nato (one that changes him physically and mentally), had to stop total war from once again breaking between the major nations of the world with the aid of a returned princess Luna, had to protect the Elements of Harmony as they confronted the source of worldly chaos, a corrupted Discord, came to the harrowing discovery that he was, in fact, an artificial homonculi created by the Regime to serve as an unquestioning general, and finally had to confront an eldritch abomination called "S'muz" in a dimension of complete chaos alone (as he was both soulless and corrupted, thus could face it and not go mad), and somehow convince it to destroy itself rather than carry out its goal of total assimilation and consumption.
So yeah, the shark was jumped quite majorly.
My time away from the writing (due to life issues) showed me how to fix my errors however, and that's what I'm doing, aside from reviews and a possible future workshop.