Yes, the team has access to great deduplication and anti-Sybil tools with good blockchain data analysis. They can easily find (large) clusters or automated wallet and transaction behaviour.
Furthermore it helps a lot to apply minimum requirements. For example setting a minimum requirement of eg. 10 or 50 JUP staked for the allocation to DAO / JUP Stakers would filter out around ~ 300,000 wallets, many of which have just 0,1 JUP staked.
Setting a $100+ minimum volume requirement for trading volume would instantly filter out 11,361,557 low volume wallets (mostly irrelevant bot wallets, farming and Sybil’s).