We see in this mounths that many dex exchanges like uniswap badger and 1inch lunch their own tokens and give a massiv airdrop to all the connected adresses
Founder of dydx said in an interview that the platform will lunch a token maybe in the beggening of the new year and i advice everyone to connect their wallet before its too late
Right many dex airdrop exchange give more profitable for trader who qualify trade with period rule based on exchange dex, but I think when have dex exchange give announcement for participating on their dex airdrop is not true, last dex success airdrop from UNI, LON and last 1inch coin never give announcement just give date for any one trade on this time will get new coin or qualify to claim coin, they not promote trader to trade on their exchange to earn new coin like concept happen right now with dex exchange exactly with dydx airdrop, believe or not depend with you.