It sounds like users of this service are essentially sharing data with each via siftscience (e.g. bad credit cards, shipping addresses, etc). I considered exact

It sounds like users of this service are essentially sharing data with each via siftscience (e.g. bad credit cards, shipping addresses, etc). I considered exactly this business model years ago, but considered it a complete non-starter due to privacy and proprietary information reasons. I could be completely misreading this, but it does seem like a lot of the value is not just in each customer's data in isolation, but comparing it against the growing volume of shared data.