In the Web3 world, airdrops have always been an important means of attracting user participation. However, many participants have recently found that even after spending a lot of time and effort on various interactions, they still fail to qualify for airdrops. Behind this phenomenon lies an important shift.

Nowadays, project teams no longer solely focus on the frequency of user participation, but rather place more emphasis on the quality and authenticity of user behavior. What they value more is:
1. Do users have authenticity and continuity?
2. Does the user have the willingness to participate in the project long-term?
3. Are the user's interactive behaviors logical?
4. Do users have a habit of retention and continued use?

The change in this filtering method stems from the emergence of a system called Lagrange (LA). Lagrange provides project parties with a set of advanced filtering tools, including:
- The ability to customize filtering rules, such as being able to specifically filter users who have an interaction period of over one month and have not withdrawn coins.
- The on-chain query function can achieve accuracy at the level of SQL statements.
- Zero-knowledge proof generation to ensure data authenticity and non-repudiation.
- Smart contracts directly determine user eligibility

The emergence of Lagrange marks the beginning of a new era in the screening mechanism for airdrop projects. It no longer relies on manual reviews or simple screenshot proofs, but is based on on-chain behavior proof and zero-knowledge verification systems, greatly enhancing the accuracy and fairness of the screening.

For Web3 users, this means that participation strategies need to be adjusted accordingly. It's no longer simply about following KOLs or frequently engaging in meaningless interactions, but rather truly immersing oneself in projects and demonstrating genuine, sustained interest and value. Only in this way can one stand out under the new filtering mechanism and qualify for an Airdrop.

This transformation not only helps project teams identify truly loyal users but also contributes to the healthy development of the entire ecosystem, pushing Web3 towards a more mature and sustainable direction.