The data they have on me is all publicly available to begin with (LinkedIn, Portfolio website). They have absolutely nothing that may be of any use to advertisers. I am listed in just two categories:
Internet Internet > Online Streamers > Photo Sharing Consumers
No shit sherlock. I've got a Flickr account, and I am on the Internet. Apparently I am not a big influencer ... how little do they know that I have a multitude of accounts on various forums and social networking platforms with thousands of people that read what I write.
At least for me their system is a complete joke.