You're 100% right about scanlines. The only people who like them are people who are desperately tying to go back to their childhood and think that if every last tiny detail is just right, they'll be able to be happy again. They think that the reason they're unhappy is because the balance of the universe is upset, and naturally that balance was absolutely perfect right around the time they were 8-12 years old. What a coincidence. If we just return the universe to the state it was in during their childhood, they'll feel the same happiness and wonder they did when they were ten. Right? That's how it works, right?
And yes, it does feel very similar to the way Twitter genderspecials think that the reason they're never happy is because they haven't found the correct combination of genders and sexualities, like some form of fucked up alchemy. They can never admit it's because of their lifestyle or outlook. No, if they simply combine demisexual with femme genderqueer and add a dash of two-spirit as a reagent, then they'll finally be happy. They're sure of it. They were sure of the last combination, but now they're really sure.