As the question states, is there any point adding Dublin Core meta-tags to your HTML head? Or has sitemap.org removed the use for most of this (though it only replaces some of the tags)
I ask this as most sites I visit don't seem to use DC metatags in their source.
I'm interested in whether I need them for a site that will be used mostly for developers, however the discussion can be broader than this category.
To quote Google (from 2002):
"Currently we don't trust metadata because we are afraid of it being manipulated"
Dublin Core is still very important in certain industry sectors. Here in the UK, government organisations use DC to provide standardised access to tags.