Optimism's second airdrop, distributing 11.7 million OP tokens in February 2023, aimed to incentivize governance participation and power users. While it boosted short-term engagement, long-term retention remains uncertain. Data suggests airdrops often attract transient users, with retention dropping post-reward (e.g., Arbitrum’s retention faded after three months). Optimism’s multi-round strategy may sustain interest, but user retention hinges on ongoing value beyond tokens. Analysis of Airdrop 5 (2024) showed a modest 4.2% 30-day retention increase, indicating limited long-term stickiness. Without continuous ecosystem benefits, retention rates likely mirror industry trends—below 20% after four months.