Dissent – Accountable anonymous group communication
Some paper reading shows that while interesting, the technique being used has issues with churn. This means small, reliable groups can use a tool like this. Anonymity is only provided within the group! You cannot hide your membership. In such a situation, anonymity is only improved by making the group larger and because their solution cannot handle churn, it will not scale larger.In general anonymity and scalability seem to be at odds, so this is not surprising. A breakthrough showing this to be the case would be awesome but (I think) unlikely.