The problem with airdrops (even post TGE) is that there's no way to calculate the ROI and therefore impossible to tell if they're cost-effective. So why do projects keep doing them? My best guess is that they don't know what else to do with their tokens.

building @dau and @boostxyz to help app devs grow onchain with token incentives

If your token has utility, theres a way to calculate the ROI.

Onchain startups. Farcaster app store (@farstore) and tips (@tipn)

if the token has fees it's a lot easier to calculate ROI and can just measure as return on incentive spend. just see if airdrop recipients drove more fees than the airdrop rewards they received

Yup. Your original cast frames airdrops as the bad guy, but I really think its the token models that have more evolving to do.