Molly Kleinman says that we librarians spend too much angst and teen on metadata, and she's completely right. (It's not always our fault; sometimes our systems force us to be martinets. But she's still right.)
Even so—who will worry about the poor neglected metadata? Who, I ask you?
Pat Lockley, that's who. He took a lengthy tour of the seamy underside of the metadata industry, and chronicled the results.
(Trigger/offense warnings: one totally egregious and unnecessary slam at fat women, a lot of broad stereotypes. The bit about repository managers, though? Completely true. We've all been reduced to that. Take my word for it.)