Does anyone still care about the name and address of a publisher?
It's always important to know the venue for a scientific publication, not just in case you have to track it down, but also in order to understand what sort of review or other vetting process (if any) the publication will have gone through.  

For a conference or a journal article, that's the name of the conference or the journal.  Thus, I wouldn't typically bother including the publisher---although many such effectively include the publisher in their title (e.g., IEEE Signal Processing, ACS Nano, Nature Methods).

For a book, however, the publisher is the venue, as they decide what merits publication and how to try to ensure validity. Knowing that a book is published by the Oxford University Press means something, just like knowing that a conference is sponsored by the IEEE.  It's not a guarantee of correctness any more than journal peer review, but it does imply some basic degree of quality control.

As for address: while it might theoretically be useful for disambiguation, these days most large publishing organizations have multiple sites and are really anchored by their online location rather than their physical location. Thus, I find address completely useless in a citation of recent work and will omit it unless forced by a publisher.

Finally, note that all of this does change if you're talking about works that are not accessible electronically (e.g., much of the literature before the 1970s or so), for which as many hints as possible are useful if one must track it down.