A Librarian's Take on public domain and "public domain"
"As librarians, I feel we have to be prepared to find content that is freely usable for our patrons, not just content that is mostly freely usable or content where people are unlikely to come after you. As much as I’m personally okay being a test case for some sort of “Yeah I didn’t read all 9000 words on the JSTOR terms and conditions, please feel free to take me to jail” case, realistically that will not happen. Realistically the real threat of jail is scary and terrible and expensive. Realistically people bend and decide it’s not so bad because they think it’s the best they can do. I think we can probably do better than that."