I had a similar idea to sell peoples personal data in bulk with their permission and then give people back a portion of a monetary award. Then people would bid for certain properties about the personal data. I was inspired to do something like this from the below article from the ACM https://cacm.acm.org/magazines/2017/12/223045-a-theory-of-pr... .

One of the issues I found was while I could easily charge people for the sale of large amounts of personal data the way to pay out would probably be in some kind of ACH with a minimum amount of money to accumulate for that.