Most of my libraries don't want to show the "Libraries" link on the OPAC. While you can hide it using Javascript, it's not a very elegant solution. There should be a system preference to hide it (like every other option on that nav bar besides "Advanced search").
I agree. It was a nightmare when we upgraded to that version, all my clients were unhappy with the change for some reason (and very vocal about it). They have gotten used to it since, fortunately, although if this goes through, I'm sure a lot of them will disable it. Adding this type of thing should definitely come with a syspref.