Users care about authority control. Why? Because it’s a pain in the butt to have to click on 7 slightly differing entries for Gabriel Garcia Marquez to find all the relevant items in the catalog. The same thing happens with title authority control. I can’t wait for FRBR to take hold in our catalogs…either that, or this user-level authority control. Anything would be better than the messes we have to deal with now.
When full FRBRosity is achieved, authority control will fix all these problems.