SOLUTION
My solution here might not be right but this is how I see it.
1. Pay Bounty/Airdrop hunters with ETH, BTC or any Popular Coin thats already trading in the market
2. Buy Back some initial dumpers, which will make almost everyone else not to dump any more
Anyone who knows a better way can tell us here!
I agree with these 2 points, i think pay bounty with ETH is a good solution but the problem is when a project/ICO failed or not reach softcap, how is the project will pay the bounty participants? I'm sure many bounty hunters will complaint and make a scam accusation thread about it. Also, the project owner using their token to pay bounty participants because of they don't want use their money to buy eth to pay the bounty hunters.