Farmers transact, bridge and provide liquidity specifically to appear in future snapshots. It has become an industry, which is why new-protocol usage statistics are a poor proxy for genuine demand.
The economics are worse than they look. You pay gas, take real market risk on capital deployed, and face a binary outcome decided by criteria published afterwards. Many campaigns exclude farmed wallets entirely.
Example: 200 transactions averaging $3 of gas across six months is $600 spent for an uncertain claim, before counting the time and the impermanent-loss on capital parked in pools. Running many wallets to multiply the odds is sybil-attack behaviour and is routinely filtered out.
Related: airdrop, sybil-attack, testnet, token-unlock