I don't disagree that some library systems are pretty tech illiterate and might share email addresses without understanding the consequences. However, I feel t

I don't disagree that some library systems are pretty tech illiterate and might share email addresses without understanding the consequences. However, I feel the need to assert my opinion that librarians are generally pretty fierce defenders of privacy in the specific context of lending/reading history, so your assumption does not ring true at all to me. Libraries/librarians have been consistent defenders of lending history privacy in the face of the Patriot Act[1][2] and I would be shocked to see a pattern of libraries anywhere in the US giving out lending history data in the context of anything but the most direct of legal requirements. I was employed by a public library once upon a time and received specific training on when to share lending data ("never, and if asked, lock the computer and go get the Director, even if the person asking has a badge"). [1] https://www.aclu.org/press-releases/librarians-speak-out-first-time-after-being-gagged-patriot-act https://www.aclu.org/press-releases/librarians-speak-out-fir... [2] https://sfpl.org/about-us/confidentiality-and-usa-patriot-act https://sfpl.org/about-us/confidentiality-and-usa-patriot-ac...