Airdrop, the bounty wasn't the problem for the collapse of Ethereum Price. When Ethereum price was 1500 USD or more, do you think that time Airdrop bounty wasn't there? It was and everything was cool. No one knows the exact reason why the ETH price came down such a low level! When Bitcoin price came to 5800 USD a few months ago, that time ETH price was 381 USD, But Now BTC price is more than 6500 USD and ETH price only 208 USD! Some big investors dumped millions of Ethereum, maybe that can be the reason.