I’ve had my Nook for quite a while, and I love it! I also like the Barnes and Noble Store here in my town, and have seen no evidence of some of the complaints listed in this thread.
I do live in a very conservative community, however, and that might be the difference.
I have been to B&Ns in liberal districts and cities. Never had trouble finding any book.
I’ve never had any problems in my local B&N. Even in the weeks following Sandy Hook, they never hid any of the gun or hunting magazines. The were where they always were in the past.