[W]hile Dissent can measure vulnerability to intersection attack and control anonymity loss, it cannot also ensure availability if users exhibit high churn and individualistic, “every user for himself” behavior. Securing long-lived pseudonyms may be feasible only in applications that incentivize users to keep communication devices online consistently, even if at low rates of activity, to reduce anonymity decay caused by churn. Further, robust intersection-attack resistance may be practical only in applications designed to encourage users to act collectively, rather than individually, and optimized for these collective uses.

Joan Feigenbaum and Bryan Ford, “Seeking Anonymity in an Internet Panopticon”