Anyone who's been around long enough (sui 's pre-mainnet) knows that it is not Mysten's style to incentivize testnet interactions, galxe tasks etc.

We saw that with $SUI presale, $DEEP airdrop and $NS airdrop.

If history is anything to go by, your best shot at getting in on $WAL (airdrop/presale) is by building a time machine and going back to H1 2024 or earlier to actually use the Sui and it's dapps.