Not a crucial question by any means, but something I've wondered about...

My TBR pile includes many WL books. Some have the red W and some the green W. I know the green indicates that it is on someone's WL with auto request.  But, does that mean the person is first in line for the WL book, or merely that if the first person (or second, or however many) rolls over, eventually you will come to someone who has it on auto request? Or do auto requests take precedence over non-auto, regardless of the actual WL order?

It means the first person in line has it set to auto-request. If it is an actively posted book that doesn't necessarily mean you will get that person when you post because someone could post to that person before you get yours posted.

Auto-requests do not take precedence over non-auto, they are granted in the order they are wished for.

Thanks!