alt Hacker Newsno, I'm making the rhetorical point that the sort of persons that might have 2 million laying around to pay for an iOS zero day for blackhat type purposes might not be the most honorable or likely to actually pay you. And what recourse would you have?
This depends on what you consider black hat. Israeli company that sells surveillance malware to dictatorships around the globe isnt exactly moral, but its legal business.
Unlike Apple or Microsoft buying and selling exploits is their only source of income so they have no motivation not to pay. Reputation is much more important. Also legal system does work in Israel.