I am thinking of building a decentralized market for selling 0day products, trojans, worms and malware products on top of blockstack. It would be an automated decentralized blockchain-powered marketplace with a functionally encrypted negotiation area for buyers (government agencies, banks and corporations etc) and sellers (security researchers and resellers) by adding Hyrax zero-knowledge protocol (zkSNARKs without trusted setup:
https://wahby.org/hyrax-oakland18-talk.pdf). The current market-size is more than USD20Billion worldwide and growing at 100% plus rate annually. Any experienced blockstack developer want to collaborate with me on mutually beneficial terms? I assure you 100% fair deal for both of us and equal sharing of financial rewards.
EDIT (moderator): please be careful when opening links to non-HTML pages