I still hold on to my belief that it isn't a coincidence another editor for AoT ended up brutally murdering his wife.
I have no real proof, other than Isayama apparently rivals eldritch horrors in making people lose their mind. What Isayama lacks in cosmic horror quality the likes of Chtulu, the Color out of Space, and the Whataleys possess, he compensates with pure autism.
Imagine just trying to corral that pure autistic storm. I just picture this going on:
"....And so the little Titan rips Sasha's intestines out and slowly rips each of her legs off..."
"Ok, you just made Yoroko-san go to the bathroom and cry, please change it."
"Is that a problem? Alright then, the little Titan makes a fist and pushes it slowly down...."
"THAT'S THE SAME THING, JUST DON'T KILL HER YET"
"How about she gets put in Zachary's shit chair and....
"NO."
*2 weeks later*
"...ok, fine, she won't die.
I'll just make a child soldier brutally murder her later."
"Thank God....wait, what?"
"NOTHING."
*10 Years and 2 weeks later*
"Isayama, you can't have a genocidal nationalist fucking win."
"Why?"
"Because Eren is literally fucking Hitler. You've just made an ending where Hitler wins."
"Ok, then maybe Misaka kills Eren and then takes his corpse away, but he's really still alive, just with no head so he is in a permeant coma but since he has traumatic spinal injuries he can still get erections and they have a baby together."
"....How is that even remotely better? NO."
"Hrm...ok, how about Ymir kills Mikasa and ends the human race and the Titans, but takes Eren in PATHS as her willing sex slave?"
"What?! Now you just made him into a pedophile! What the fuck is wrong with you, NO."
*2 weeks later*
".....and then Mikasa makes out with Eren's severed head, Reiner wrestles the worm to prevent him from reviving. Eren has a conversation with Armin in PATHS where it turns out he killed his mom and was doing it all so he could get laid. Ymir was also in love with her rapist. So nothing really gets resolved, 80% of humanity is dead, but at least there are no Titans, ok?"
"I...I don't care anymore. Just...just do whatever you want.
I am so going to shit in your onsen."
"Cool...what?"
"NOTHING."