This is really interesting! I'm in the same boat as you; I probably wont' sell my personal data unless I get some decent money for it, and it also depends on what type of data is being sold of course. However, it's much better to have control of it and also get something for it, because right now I neither have control or get paid for it!
Anyway, this is great news for Steemit, and for this reason alone I hope this project will be successful.