The problem is that ads and content are blurred today. I'd say something approaching 50% of "content" is actually some sort of advertisement. It would be pretty

The problem is that ads and content are blurred today. I'd say something approaching 50% of "content" is actually some sort of advertisement. It would be pretty much impossible to root advertisements out of user generated content. At least ads placed by the website are clearly labeled (well they're supposed to be by law at least).