What use is semantic metadata that is generated automatically? The whole point of "semantic" is that it's created by humans to describe the data; you can't get

What use is semantic metadata that is generated automatically? The whole point of "semantic" is that it's created by humans to describe the data; you can't get around the "extra work" requirement without defeating the uniqueness of the semantic tags. And if the extra work still stands, the average Joe will not bother with it. Hell, I wouldn't bother with it, in any form.