If an organization doesn't want outbound spam information disclosed, it can improve its infosec and thus reduce the information it releases, and everyone will win — except the bad guys. Further, the bad guys already cooperate through their extensive black market (of spammers renting from bot herders using exploits bought from malware writers, facilitated by their own use of numerous forms of online interaction), so the miscreants already know more than the good guys in many ways. These rankings let the ranked organizations cooperate through competition or collaboration to improve their security and defeat the bad guys.
After SEC-required breach disclosure, a company could show customers improved cloud.SpamRankings.net reputational rankings as evidence of improved security, and thus as incentives to remain customers. Only true fans dig into baseball fielding statistics such as putouts, yet everyone understands the scores of a game, and most people understand league rankings. A motivated investor (unlike an average customer) may dig into the SEC-required breach reports, but comparisons among companies will require a lot of work by the investor. If those breaches were turned into reputational rankings, a breached company could use those and other such rankings as third-party evidence of their improved league standing, as it were. Our task is to actively present rankings with the clarity of sports scores while providing paths to statistics and other aspects of interest to the numerous specialist markets.