> This implies the only content with moral worth are those that teach knowledge or skills
This is not what OP said. He was talking about the "moral goodness of providing access to X, despite it being illlegal. He never said anything about the moral worth of X itself, let alone that Y had no moral worth.
> AA is providing a valuable service to tons of people who don't have access to these books otherwise. There's a strong argument to be made for the moral goodness of that -- that even if it's illegal, it's at least in the spirit of a public library.