A scheme where you have to follow a load of social accounts and make posts for a couple coins is not an airdrop.
They are not the same. Airdrops is when you subscribe or follow or join a group like telegram, follow twitter or subscribe youtube. Then register link to them but in bounty, you need to retweet/tweet/post/repost in fb and tweeter. In rewards, you get small amount of token in airdrops than bounties. Maybe because it was easy to do than bounties.
When I drop a lot of money to you the only effort you will make is catch it. That is what airdrop is. You wont need to do anything.
You are telling the wrong idea about what real airdrop is. They made so much work and now this hoodlums are copying names of accounts here just so they could get more.
It just made the whole forum inviting to those thieves.
Developers now got tired of checking legitimate users. That is the problem.