There are no guarantees, just experiences that lead us to have confidence in future iterations of new projects, such as project size, team, funding, aggressive marketing program... But in general, most airdrops in the crypto space just bring trash to the wallet, but I think it also depends on the approach of the airdrop hunters like projects like OP, ARB, STRK, ZK,... then you have to make sure that you are willing to spend the fee and it is not certain that you will be on the airdrop list. But anyway, these are simple tasks so there is no need to expect too much results, even when there are big airdrops in the space.