[marcosdumay]

The idea is flawed.

Semantic Web expects people to do extra work, with no benefit. Create a benefit for those people, and you'll see it get done.

[miguelrochefort]

The benefit is the unifed interface.

Imagine Facebook being replaced by the semantic web.

[marcosdumay]

For the people creating content, that's a problem, not a benefit.

Yes, for the readers, if there were enough structured content available, that would be a benefit. They aren't the ones that need convincing.