What’s the use of Dublin Core? ask Adriaan M. Bloem in CM Pros. (read from ColumnTwo.)
The point is that metadata aren’t used on the web. You can still use them internally, but what the point to publish them on the web ?
I think that AI will be good enough to extract metadata from plain text when their usage will grow eventually.
I had the same feeling when I was interested in Social Networking. You can create a foaf.rdf, but who will use it ? what software will consume it ? Instead the “Social Networking” thing has taken the direction of MySpace, FaceBook, LinkedIn … i.e. centralised in the hands of a few big companies not distributed !
Update : it is going even further ! I read in TechCrunch that :
the COO of News Corp. says that Web 2.0 is leaching traffic off of MySpace, that they can build their own services to compete with any of it and that there’s going to be an increasingly aggresive commercial push on the site.
So even the server collaboration aspect of the “Web 2.0” stuff may be too much for some.