This may be a good thing for your site, but jtara's example was a good one. If you were advertising an event, people have to click on your site if they want to attend. Or a business might want its contact details to be easy to find. I think there are quite a few examples of when it could be useful.
But that's inevitable, surely? So, we just need the right flavour soup. I don't know if microformats is it - I like the idea but I'm unsure about the execution. Although even Google checks for a Creative Commons License [google.com].