All it takes for a book to be considered a banned book is one school in the middle of nowhere to ban it.
Lord of the flies has "muh heckin ebil violence" so I suppose it may have gotten banned by one pearl clutch school meanwhile all other schools have it.
My school had the Asoiaf books next to middle schooler comics, such as Bone. 🤣
As many of you know, I used to date a mulatto lchildren's librarian who was adopted and it turned out her birth mother was in a lesbian relationship with a bulldyke in San Francisco. She also had some social issues with wanting to be accepted so sh would go with whatever was trendy at the time, like Mindless Self Indulgence even though it's a terrible band and the lead singer is a known pedophile, child pornographer, and rapist. I am so glad she left me because I am certain she would be weak enough to support this horrid propaganda.
A singular hillbilly school in the middle of no-where bans a book?
It gets extra publicity as a banned book because it technically is.
Something closer to a banned book would be one of Maquis De Shade's stories, but even then, that stuff is overatted and publically aviable.
A true banned book only has a few copies left in existence due to a crackdown, and no one has ever heard of it.
By which they really mean, "refused to buy a copy of the book for their library".