In just about every case when I have tried to explain to people that they need this module, it has lead to mass confusion and misunderstanding. I think we really need to take a look at changing the module namespace for Drupal 7 back to http://drupal.org/project/rdfx. Most of the people in the RDF BoF at DrupalCon agreed with this.
Just today, I received:
For example you say,
1. download drupal.org/project/rdf. but it already part of D7 core. Why should I download it?
This confusion is frustrating to no end. In some cases, people get quite snippy with me when I try to explain that they need this project.
I think we need to nip it in the bud and move the project. This would also fix the rather critical bug regarding updates.