The Problem: Nostr’s decentralized infrastructure is fragile because it depends on the stability of voluntarily operated relays. The high relay churn rate threatens the permanent availability of content (the “censorship resistance” goal) and makes the user experience unpredictable.

The Data: A large-scale study found that 20% of relays experience downtime for more than 40% of the measurement period. Financial sustainability is a key factor: an estimated 95% of free-to-use relays cannot cover their operational costs through user donations alone. This creates a perverse incentive: the most reliable relays tend to become paid, shifting the economic burden onto users and creating a barrier to entry.

Practical Implication: The promise of a permanent, resistant social archive is compromised by economic reality. Users risk losing their data if the relays they use shut down. The search for reliability pushes towards a paid model, which, while reducing spam, contradicts the ideal of universal free access and centralizes power with those who can afford to run costly infrastructure.